### What Does The Ideal Gas Law Allow A Scientist To Calculate?

- Marvin Harvey
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The ideal gas law is a combined set of gas laws that is a thermodynamic equation that allows us to relate the temperature, volume, and number of molecules (or moles) present in a sample of a gas.

### What does the ideal gas law allow you to calculate?

Summary – The ideal gas law is derived from empirical relationships among the pressure, the volume, the temperature, and the number of moles of a gas; it can be used to calculate any of the four properties if the other three are known. Ideal gas equation : \(PV = nRT\), where \(R = 0.08206 \dfrac =8.3145 \dfrac \) General gas equation : \(\dfrac =\dfrac \) Density of a gas: \(\rho=\dfrac \) The empirical relationships among the volume, the temperature, the pressure, and the amount of a gas can be combined into the ideal gas law, PV = nRT,

- The proportionality constant, R, is called the gas constant and has the value 0.08206 (L•atm)/(K•mol), 8.3145 J/(K•mol), or 1.9872 cal/(K•mol), depending on the units used.
- The ideal gas law describes the behavior of an ideal gas, a hypothetical substance whose behavior can be explained quantitatively by the ideal gas law and the kinetic molecular theory of gases.

Standard temperature and pressure (STP) is 0°C and 1 atm. The volume of 1 mol of an ideal gas at STP is 22.41 L, the standard molar volume, All of the empirical gas relationships are special cases of the ideal gas law in which two of the four parameters are held constant.

The ideal gas law allows us to calculate the value of the fourth quantity ( P, V, T, or n ) needed to describe a gaseous sample when the others are known and also predict the value of these quantities following a change in conditions if the original conditions (values of P, V, T, and n ) are known.

The ideal gas law can also be used to calculate the density of a gas if its molar mass is known or, conversely, the molar mass of an unknown gas sample if its density is measured.

#### What does the ideal gas law allow a scientist to calculate that the other gas laws do not temperature number of moles pressure volume?

1 Answer. The number of moles of the gas can be calculated from the ideal gas law, as well as the gas constant.

## What does the ideal gas law prove?

Ideal Gas Laws Charles Law – states that for a given fixed mass of gas held at a constant pressure the gas volume is directly proportional to the gas temperature.

## What is the purpose of the ideal gas law?

The ideal gas law is the final and most useful expression of the gas laws because it ties the amount of a gas (moles) to its pressure, volume and temperature. The ideal gas law is a critical tool used in chemical and engineering calculations involving gases.

### What does the ideal gas equation tell you?

What are the Gas Laws? – The gas laws are a set of laws that describe the behavior of gases under different conditions of temperature, pressure, and volume. These laws were developed by scientists such as Robert Boyle, Charles’s Law, and Gay-Lussac’s Law, and they are based on the idea that the particles in a gas are in constant motion and interact with each other only through collisions.

- The gas laws describe how the pressure, volume, and temperature of a gas are related, and they can be used to predict the behavior of gases under different conditions.
- For example, the ideal gas law states that the pressure, volume, and temperature of a gas are directly proportional to each other, as long as the number of particles and the mass of the gas remain constant.

This law can be used to calculate the properties of a gas, such as its density or molar mass, given certain information about its pressure, volume, and temperature. The gas laws are an important concept in chemistry, and they are used to explain many of the properties and behavior of gases.

The ideal gas law is an equation of state that describes ideal gases. This equation of state relates a gas’s pressure, volume, temperature, and mass, and is very useful for describing how gases will behave in ideal conditions. This is the most common equation of state for gases. A few notable other gas laws are the Van der Waal’s and the Virial equation of state, which both describe the state of gases in non-ideal states.

See our article on Van der Waal’s Equation to learn more about this. The ideal gas equation was first stated by Benoît Paul Émile Clapeyron in 1834 as a combination of Boyle’s law, Charles’s law, Avogadro’s law, and Gay-Lussac’s law. Clapeyton was a French engineer, and one of the founders of thermodynamics.

### What does the ideal gas law describe answers?

Answer and Explanation: The Ideal Gas Law states that the product of pressure and volume of one mole gas and the product of the universal gas constant and absolute temperature of gas are equivalent to each other.

### What is the ideal gas law and what are the terms represented in it?

Section Summary –

- The ideal gas law relates the pressure and volume of a gas to the number of gas molecules and the temperature of the gas.
- The ideal gas law can be written in terms of the number of molecules of gas: PV = NkT, where P is pressure, V is volume, T is temperature, N is number of molecules, and k is the Boltzmann constant k = 1.38 × 10 –23 J/K.
- A mole is the number of atoms in a 12-g sample of carbon-12.
- The number of molecules in a mole is called Avogadro’s number NA, NA = 6.02 × 10 23 mol −1,
- A mole of any substance has a mass in grams equal to its molecular weight, which can be determined from the periodic table of elements.
- The ideal gas law can also be written and solved in terms of the number of moles of gas: PV = nRT, where n is number of moles and R is the universal gas constant, R = 8.31 J/mol ⋅ K.
- The ideal gas law is generally valid at temperatures well above the boiling temperature.

### What is an ideal gas explanation?

An ideal gas is defined as one for which both the volume of molecules and forces between the molecules are so small that they have no effect on the behavior of the gas. From: Natural Gas Processing, 2014

#### Which statement best describes an ideal gas?

Answer and Explanation: The correct option is (a.) The volume occupied by gas molecules themselves is not comparable to the volume between molecules.