Kinetic Theory of Gases HC Verma Solutions of Que for Short Ans Ch-24

Kinetic Theory of Gases HC Verma Solutions of Que for Short Ans Vol-2 Ch-24 Concept of Physics. Step by Step Solution of Questions for short answer of Ch-24 Kinetic Theory of Gases HC Verma Question for Short Answer . Visit official Website CISCE for detail information about ISC Board Class-12 Physics.

Kinetic Theory of Gases HC Verma Solutions Que for Short Ans Vol-2 Ch-24 Concept of Physics

Board ISC and other board
Publications Bharti Bhawan Publishers
Ch-24 Kinetic Theory of Gases
Class 12
Vol  2nd
writer H C Verma
Book Name Concept of Physics
Topics Solutions of Question for short answer
Page-Number 32

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Ques for Short Ans

Objective-I

Objective-II

Exercise


Kinetic Theory of Gases Que for short ans

HC Verma Solutions of Ch-24  Vol-2 Concept of Physics for Class-12

(Page-32)

Question 1 :-

When we place a gas cylinder on a van and the van moves, does the kinetic energy of the molecules increase? Does the temperature increase?

Answer 1 :-

No, kinetic energy of the molecules does not increase. This is because velocity of the molecules does not increase with respect to the walls of the gas cylinder, when the cylinder is kept in a vehicle moving with a uniform motion. However, if the vehicle is accelerated or decelerated, then there will be a change in the gas’s kinetic energy and there will be a rise in the temperature.

No, the gas won’t obey ideal gas equation due to the following reasons:
1. In a cooking gas cylinder, the gas is kept at high pressure and at room temperature. Real gases behave ideally only at low pressure and high temperature.
2. Cooking gas is kept in liquid state inside the cylinder because liquid state does not obey the ideal gas equation.

Question 4 :-

Can we define the temperature of (a) vacuum, (b) a single molecule?

Answer 4 :-

(a) Temperature is defined as the average kinetic energy of he particles. In a vacuum, devoid of any electromagnetic fields and molecules or entities, the temperature cannot be defined as there are no molecules or atoms or entities.

(b) No, we cannot define temperature of a single molecule. Since temperature is defined as the average kinetic energy of the particles, it is defined only statistically for a large collection of molecules.

Question 5 :-

Comment on the following statement: the temperature of all the molecules in a sample of a gas is the same.

Answer 5 :-

Yes, at equilibrium all the molecules in a sample of gas have the same temperature. This is because temperature is defined as the average kinetic energy for all the molecules in a system. Since all the molecules have the same average, temperature will be the same for all the molecules.

No, the pressure on gas won’t increase because of this. The pressure will not be transferred to the gas, but to the container and to the ground.

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