### What Are The Variables Of Boyle’S Law?

The variables involved in Boyle’s law are pressure, volume, number of moles and temperature. It simply explains the inverse relationship between pressure and volume.

## What are the 2 variable in Boyle’s law?

Boyle’ Law

Boyle’s Law: Verification Boyle’s Equation Robert Boyle

If the temperature of a gas is constant, as the pressure on the gas increases the volume will decrease. The inverse is also true. If the pressure on the gas decreases then the volume will increase. It was Robert Boyle, in 1662, who was first to fully investigated the pressure-volume relationship of gases.

Boyle used a tube containing a gas and mercury. When he changed the amount of mercury in the tube he changed the pressure, which in turn changed the amount of space occupied by the gas. When the amount of mercury was doubled, the volume decreased by half. Robert Boyle’s observations are summed up in Boyle’s law, which states that for a given mass of gas at constant temperature, the volume of a gas varies inversely with pressure.

Because of the inverse relationship, the product of the two quantities, pressure and volume, is constant. When given any two sets of pressure and volume, at a given temperature, the product will be the constant. When you look at the first set of data plotted on the graph you notice the curve of the line indicating the inverse relationship between pressure and volume. As the pressure was decreasing the volume was increasing. When you take any point on the curve and multiply the pressure value by the volume value the product equals the constant.

This graph is consistent with Boyle’s law. The second graph is showing the relationship between 1/pressure and volume. When the data is plotted in this format the slope of the line is linear. This is also consistent with Boyle’s law. If there is an inverse relationship between two variables, plotting the inverse of one variable will generate a straight line.

Plotting Boyle’s data onto a graph allows us to better see the relationship between pressure and volume and what ultimately led to Boyle’s law. : Boyle’ Law

### What variables must be controlled in Boyle’s law?

What are the variables kept constant in Boyle’s law? Answer Verified Hint: In the above mentioned question, we will discuss Boyle’s gas law as well the mathematical form regarding the law and also about the variables that kept constant in gas law. And also we will discuss some more on it.

Complete step by step answer: Note:

Boyle’s law is a gas law which expresses that the pressing factor applied by a gas (of a given mass, kept at a consistent temperature) is contrarily relative to the volume involved by it. As such, the pressing factor and volume of a gas are contrarily corresponding to one another as long as the temperature and the amount of gas are kept steady.

V \propto \dfrac \$ \$ V = K\dfrac \$ \$ V = \dfrac \$ \$ or,PV = K \$ \$ \$ \$ \therefore = \$ So, the constant variable in Boyle’s law will only be temperature. Albeit the temperature is the lone steady factor; volume, temperature, and pressing factor are contrarily relative to one another. As we probably are aware Boyle’s law expresses that the volume and pressing factor of a gas has a reverse relationship while the temperature is steady.Boyle’s law says that absolute pressure exerted by a specific mass of an ideal gas is inversely proportional to the volume it occupies.

But when we blow up a balloon we do not have one specific mass of gas, because with every blow into the balloon we are increasing the mass of gas inside the balloon. : What are the variables kept constant in Boyle’s law?

### What are the four variables present in Boyle’s law?

Ideal Gases – Ideal gas, or perfect gas, is the theoretical substance that helps establish the relationship of four gas variables, p ressure (P), volume(V), the amount of gas(n) and temperature(T), It has characters described as follow:

1. The particles in the gas are extremely small, so the gas does not occupy any spaces.
2. The ideal gas has constant, random and straight-line motion.
3. No forces between the particles of the gas. Particles only collide elastically with each other and with the walls of container.

#### What are the 2 types of variables?

Text begins A variable is a characteristic that can be measured and that can assume different values. Height, age, income, province or country of birth, grades obtained at school and type of housing are all examples of variables. Variables may be classified into two main categories: categorical and numeric.

## What are 2 variable equations called?

Definition – An equation is said to be linear equation in two variables if it is written in the form of ax + by + c=0, where a, b & c are real numbers and the coefficients of x and y, i.e a and b respectively, are not equal to zero.

• For example, 10x+4y = 3 and -x+5y = 2 are linear equations in two variables.
• The solution for such an equation is a pair of values, one for x and one for y which further makes the two sides of an equation equal.

### What are the independent and dependent variables in Boyle’s Law?

Boyle’s Law. Gases are often characterized by their volume, temperature, and pressure. These characteristics, however, are not independent of each other. Gas pressure is dependent on the force exerted by the molecular collisions and the area over which the force is exerted.

### What are the variables of Boyle’s Law volume and number of molecules of gas?

It states that under a constant temperature when the pressure on a gas increases its volume decreases. In other words according to Boyle’s law volume is inversely proportional to pressure when the temperature and the number of molecules are constant.

## What are the variables in Charles Law?

As per Charles’s law, the volume of a gas is directly proportional to its temperature (in the Kelvin scale) provided the amount of the gas and pressure remain constant. Hence, variables remain constant in Charles’s law: (1) amount of gas and (2) pressure.

#### What are the 3 main variables?

There are three main variables: independent variable, dependent variable and controlled variables.

## What are the 4 variable types?

Qualitative vs. Quantitative Variables – Look at ( Figure 1.1 ) again. On the left hand side you see that there are two larger classifications for the kinds of variables you have been studying. There are qualitative variables and there are quantitative variables,

You can see that the four levels of measure (nominal, ordinal, interval and ratio) fall into these two larger supercategories. So, interval and ratio variables are two kinds of quantitative variables and nominal and ordinal variables are two kinds of qualitative variables. Now one kind of variable isn’t necessarily better than another.

You are a little more used to working with quantitative variables. For example, you can do averages and things like that with quantitative variables, you know there are numbers, you can add them up and divide and things like that. With qualitative variables it’s not so clear cut.

## What is dependent and dependent variable?

Frequently asked questions about independent and dependent variables – What’s the definition of an independent variable? An independent variable is the variable you manipulate, control, or vary in an experimental study to explore its effects. It’s called “independent” because it’s not influenced by any other variables in the study. Independent variables are also called:

Explanatory variables (they explain an event or outcome) Predictor variables (they can be used to predict the value of a dependent variable) Right-hand-side variables (they appear on the right-hand side of a regression equation).

What’s the definition of a dependent variable? A dependent variable is what changes as a result of the independent variable manipulation in experiments, It’s what you’re interested in measuring, and it “depends” on your independent variable. In statistics, dependent variables are also called:

Response variables (they respond to a change in another variable) Outcome variables (they represent the outcome you want to measure) Left-hand-side variables (they appear on the left-hand side of a regression equation)

Can I include more than one independent or dependent variable in a study? Yes, but including more than one of either type requires multiple research questions, For example, if you are interested in the effect of a diet on health, you can use multiple measures of health: blood sugar, blood pressure, weight, pulse, and many more.

#### What variable has only 2 values?

Classifying Types of Variables – LO 4.1: Determine the type (categorical or quantitative) of a given variable. LO 4.2: Classify a given variable as nominal, ordinal, discrete, or continuous. Variables can be broadly classified into one of two types :

Quantitative

Categorical

Below we define these two main types of variables and provide further sub-classifications for each type. Categorical variables take category or label values, and place an individual into one of several groups, Categorical variables are often further classified as either:

Nominal, when there is no natural ordering among the categories,

Common examples would be gender, eye color, or ethnicity.

Ordinal, when there is a natural order among the categories, such as, ranking scales or letter grades.

However, ordinal variables are still categorical and do not provide precise measurements. Differences are not precisely meaningful, for example, if one student scores an A and another a B on an assignment, we cannot say precisely the difference in their scores, only that an A is larger than a B.

Discrete, when the variable takes on a countable number of values.

Most often these variables indeed represent some kind of count such as the number of prescriptions an individual takes daily.

Continuous, when the variable can take on any value in some range of values,

Our precision in measuring these variables is often limited by our instruments. Units should be provided. Common examples would be height (inches), weight (pounds), or time to recovery (days). One special variable type occurs when a variable has only two possible values.

• A variable is said to be Binary or Dichotomous, when there are only two possible levels.
• These variables can usually be phrased in a “yes/no” question.
• Whether nor not someone is a smoker is an example of a binary variable.
• Currently we are primarily concerned with classifying variables as either categorical or quantitative.

Sometimes, however, we will need to consider further and sub-classify these variables as defined above. These concepts will be discussed and reviewed as needed but here is a quick practice on sub-classifying categorical and quantitative variables.

## What is a 3 variable equation?

Linear equations in three variables. If a, b, c and r are real numbers (and if a, b, and c are not all equal to 0) then ax + by + cz = r is called a linear equation in three variables. (The ‘three variables’ are the x, the y, and the z.) The numbers a, b, and c are called the coefficients of the equation.

#### How many variables are there in equation?

Polynomial equations – The solutions –1 and 2 of the polynomial equation x 2 – x + 2 = 0 are the points where the graph of the quadratic function y = x 2 – x + 2 cuts the x -axis. In general, an algebraic equation or polynomial equation is an equation of the form, or where P and Q are polynomials with coefficients in some field (e.g., rational numbers, real numbers, complex numbers ). An algebraic equation is univariate if it involves only one variable, On the other hand, a polynomial equation may involve several variables, in which case it is called multivariate (multiple variables, x, y, z, etc.). For example, is a univariate algebraic (polynomial) equation with integer coefficients and is a multivariate polynomial equation over the rational numbers. Some polynomial equations with rational coefficients have a solution that is an algebraic expression, with a finite number of operations involving just those coefficients (i.e., can be solved algebraically ).

### What is the dependent variable 2 points?

Frequently asked questions about independent and dependent variables – What’s the definition of an independent variable? An independent variable is the variable you manipulate, control, or vary in an experimental study to explore its effects. It’s called “independent” because it’s not influenced by any other variables in the study. Independent variables are also called:

Explanatory variables (they explain an event or outcome) Predictor variables (they can be used to predict the value of a dependent variable) Right-hand-side variables (they appear on the right-hand side of a regression equation).

What’s the definition of a dependent variable? A dependent variable is what changes as a result of the independent variable manipulation in experiments, It’s what you’re interested in measuring, and it “depends” on your independent variable. In statistics, dependent variables are also called:

Response variables (they respond to a change in another variable) Outcome variables (they represent the outcome you want to measure) Left-hand-side variables (they appear on the left-hand side of a regression equation)

Can I include more than one independent or dependent variable in a study? Yes, but including more than one of either type requires multiple research questions, For example, if you are interested in the effect of a diet on health, you can use multiple measures of health: blood sugar, blood pressure, weight, pulse, and many more.

### What 2 variables does Charles law deal with?

Charles’s law, a statement that the volume occupied by a fixed amount of gas is directly proportional to its absolute temperature, if the pressure remains constant.

#### What 2 variables are used in a hot air balloon?

HOW DOES A HOT AIR BALLOON WORK?

 To fly a hot air balloon takes a lot of teamwork, air, and heat, to get off the ground. A team of individuals are needed to lay the enormous balloon made of reinforced nylon, a light but strong material, flat on the ground. The balloon is also referred to as an “envelope.” They then use a small gas fan to fill up this envelope. The balloon may look full with this air, but it is still lying on the ground. In order to make it stand tall, and eventually fly, a propane burner is ignited to heat up the air already inside the balloon.

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You may have noticed that hot air rises already if you have been in a really warm place, like a sauna, then went to a really cold place, like the snow. If you did this, you would notice steam coming off your body and going up into the air. Another way you may have noticed warm air rises is on a hot day if you live, or have been in a house with two levels. In a house like this, without air conditioning, you may notice as you walk from the bottom level to the top, it feels hotter, and if you walk from the top floor to the bottom floor, then it gets cooler. The reason why the hot air balloon rises is because hot air rises. The inside air that has been heated rises due to the difference of density between the hot and cold air particles. The heated air, the air that is inside the balloon, is less dense than the cool air, the air outside of the balloon. And objects that are less dense rise. Volume = How much space something takes up Mass = How much there is of something Density = Mass / Volume

The reason we know that the hot air is less dense than cool air is due to the Ideal Gas Law. The Ideal Gas Law states that the Pressure times the Volume is equal to the number of molecules times the gas constant ( R ) times the Temperature. Sometimes if you think of it in this equation it is a little easier to understand.

• Since we know that the Volume is getting bigger, we can use this knowledge and see how it will affect the density, and since we know the equation for density is
• Density = Mass / Volume
• You can see that the bigger the volume gets, the smaller the density is.

For example. If you heat the air, your temperature increases, then your volume will increase. Let’s say the volume will increase from 600 to 1000. The mass is 10. Therefor when we plug these numbers into the equation to find density we get

1. Original air density = 10 / 600 which = 1/6
2. Heated air’s density = 10 / 1000 which = 1/ 10
3. And we know that one-tenth is less than one-sixth 1/10 < 1/6 Therefor the air that is heated is less dense, and an object that is less dense will rise

In addition to all this fun information about density, you also need to consider the force of the air pushing on the hot air balloon that gives it a lift. This force is called the Boyant Force. You can also think of the Boyant Force as the pressure water has to hold a boat up, like the water helps the boat float, the air helps the hot air balloon float. This is why when the balloon will fly. Are you interested in concerning hot air balloons? For more about hot air balloons. See a of a balloon This page was created November 1999 by Amanda Renchin I am an elementary education major, mathematics minor at If you have an questions or comments send an e-mail my way at : HOW DOES A HOT AIR BALLOON WORK?