Which Of These Statements Is Not A Consequence Of The Second Law Of Thermodynamics?
- Marvin Harvey
Answer and Explanation: The correct answer is (b) reactions that occur spontaneously are those that increase the amount of useful energy in a system. The second law of thermodynamics states that all processes result in a net increase in the entropy, or disorder, of the universe.
Which of the statements is a consequence of the second law of thermodynamics?
Common Questions about the Consequences of the Second Law of Thermodynamics – Q: What is the meaning of ‘heat death’ of the universe in the context of the Second Law of Thermodynamics? The ‘heat death’ of the universe is one of the consequences of the second law of thermodynamics that states that the heat in the universe must eventually spread out.
What is a consequence of the second law of thermodynamics quizlet?
Which of the following statements is a logical consequence of the second law of thermodynamics? Every chemical reaction must increase the total entropy of the universe.
What is the statement of 2nd law of thermodynamics?
The second law of thermodynamics describes the nature of processes and chemical reactions as follows: processes occur spontaneously if and only if by their process, the entropy change in the universe, is greater than or equal to zero.
Which of the following statements is true about 2nd law of thermodynamics?
The second law of thermodynamic states that the entropy of an isolated system increases over time and remain constant for reversible process.
Which of second law is a consequence of?
(A) Conservation of energy.
What is Newton’s law that is a consequence of his 2nd Law of Motion explain?
Newton’s Second Law Of Motion – Derivation, Applications, Solved Examples and FAQs Newton’s second law of motion, unlike the first law of motion, pertains to the behaviour of objects for which all existing forces are unbalanced. The second law of motion is more quantitative and is used extensively to calculate what happens in situations involving a force. Sir Issac newton Newton’s second law states that the acceleration of an object depends upon two variables – the net force acting on the object and the mass of the object. The of the body is directly proportional to the net force acting on the body and inversely proportional to the mass of the body. Newton’s second law can be formally stated as, The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
- This statement is expressed in equation form as,
- \(\begin a=\frac } \end \)
- \(\begin F=ma\end \)
- \(\begin \vec =m\vec \end \)
The above equation can be rearranged to a familiar form as Since force is a vector, Newton’s second law can be written as The equation shows that the direction of the total acceleration vector points in the same direction as the net force vector. Let us assume that we have a car at a point (0) defined by location X 0 and time t 0, The car has a mass m 0 and travels with a velocity v 0, After being subjected to a force F, the car moves to point 1 which is defined by location X 1 and time t 1,
- The mass and velocity of the car change during the travel to values m 1 and v 1,
- Newton’s second law helps us determine the new values of m 1 and v 1 if we know the value of the acting force.
- Taking the difference between point 1 and point 0, we get an equation for the force acting on the car as follows: \(\begin F=\frac \end \) Let us assume the mass to be constant.
This assumption is good for a car because the only change in mass would be the fuel burned between point “1” and point “0”. The weight of the fuel is probably small relative to the rest of the car, especially if we only look at small changes in time. Meanwhile, if we were discussing the flight of a bottle rocket, then the mass does not remain constant, and we can only look at changes in momentum.
- For a constant mass, Newton’s second law can be equated as follows:
- \(\begin F=m\frac \end \)
- \(\begin F=ma\end \)
We know that acceleration is defined as the change in velocity divided by the change in time. The second law then reduces to a more familiar form as follows: The above equation tells us that an object will accelerate if it is subjected to an external force. The amount of force is directly proportional to the acceleration and inversely proportional to the object’s mass.
|What is a Net Force?|
| A net force ΣF is the sum of all forces acting on a body. More precisely, it is the vector sum of all forces acting on a body. Consider two forces of magnitude 30 N and 20 N that are exerted to the right and left, respectively on the horse shown in the picture. If we assume the rightward direction as positive, then the net force on the horse can be calculated as follows:
Newton’s second law is applied to identify the amount of force needed to make an object move or make it stop. Following are a few examples that we have listed to help you understand this point:
Which of the following statements is not correct in thermodynamics?
An isochoric process is a thermodynamic process that occurs when the change in volume is zero. Hence the statement ‘ In an isochoric process pressure remains constant is not true.
Which of the following equation describe the 2nd law?
Newton’s second law of motion is F = ma, or force is equal to mass times acceleration.
What is an example of 2nd law?
Sir Isaac Newton was an English scientist. He was born in 1642 and died in 1727. This was around the time of the early colonization of North America, during the founding of some of the original 13 colonies, the French and Indiana wars, and the Salem witch trials.
- He lived just before the American Revolution.
- Newton is best known for three very important principles of physics called classical mechanics.
- These principles describe how things move and are referred to today by his name – Newton’s Laws of Motion.
- There are three of them, Newtons First, Second and Third Law of Motion.
Newton’s Second Law of Motion says that acceleration (gaining speed) happens when a force acts on a mass (object). Riding your bicycle is a good example of this law of motion at work. Your bicycle is the mass. Your leg muscles pushing pushing on the pedals of your bicycle is the force.
When you push on the pedals, your bicycle accelerates. You are increasing the speed of the bicycle by applying force to the pedals. Newton’s Second Law also says that the greater the mass of the object being accelerated, the greater the amount of force needed to accelerate the object. Say you have two identical bicycles that each have a basket.
One bicycle has an empty basket. One bicycle has a basket full of bricks. If you try to ride each bicycle and you push on the pedals with the exact same strength, you will be able to accelerate the bike with the empty basket MORE than the bike with the basket full of bricks.
Which of the following statements best summarizes a consequence of the second law of thermodynamics?
Which of the following statements best summarizes a consequence of the second law of thermodynamics? If entropy of a system decreases, there must be a corresponding increase in the entropy of the universe.
What is Newton’s law that is a consequence of his 2nd Law of Motion?
How can Newton’s first law be a consequence of Newton’s second law? Newton’s First Law of Motion states that a body will stay at rest or continue its path with constant velocity unless an external force acts upon it. Newton’s Second Law of Motion states that the net force that acts upon a body is equal to the mass of the body multiplied by the acceleration due to the net force.
In other words, #F_”net”=ma#, Now, one can argue that Newton’s Second Law of Motion leads to the First Law. Consider this: since #F_”net”=ma#, with zero net force (no external forces), #0=ma#, Now, #m# is some finite positive value. In other words, this means that #a=0#, By definition, then, there is constant velocity (possibly constant zero velocity).
Thus, it seems that Newton’s Second Law of Motion leads to the First Law. #-# Ok, now let’s look at the longer answer. Consider the following scenario. Suppose that you are orbiting around the earth. We’ll consider your perspective (in other words, reference frame).
- You are motionless, i.e.
- No velocity.
- However, there is a gravitational force acting upon you, with no other force to balance it out.
- By Newton’s Second Law, you must have an acceleration towards earth.
- Why don’t you fall down to earth? The reason is because your perspective (reference frame) is a non-inertial reference frame.
In other words, your perspective (reference frame) is accelerating in perspective to an inertial reference frame. In other words, Newton’s Second Law does not apply in a non-inertial reference frame. Well, if you don’t fully understand the above two paragraphs, don’t worry.
- It just means that there are certain scenarios where Newton’s Second Law doesn’t apply.
- To remedy this, Newton had to properly define what a “force” is.
- And that is where Newton’s First Law came in.
- Consider what the First Law states: a body will stay at rest or continue its path with constant velocity unless an external force acts upon it.
You can think that this law aptly defines what a force is, something that moves a ball from rest or changes its velocity. This prevents the Second Law from applying into the above scenario described. In other words, though the Second Law seems to include the First Law, the First Law is necessary to define what a force is.