DATE OF SUBMISSION: 23.07.2018
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DATE OF SUBMISSION: 23.06.2018

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DATE OF SUBMISSION: 16.06.2018

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DATE OF SUBMISSION: 03.12.2018

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DATE OF SUBMISSION: 27.11.2017

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DATE OF SUBMISSION: 20.11.2017

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DATE OF SUBMISSION: 06.11.2017

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DATE OF SUBMISSION: 12.09.2017

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DATE OF SUBMISSION: 02.09.2017

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REVISION-2

THERMODYNAMICS, KINETIC THEORY

1.                   Write the differences between isothermal and adiabatic process.

2.                   Derive an expression for the work done in an isothermal process.

3.                   Derive an expression for the work done in an adiabatic process.

4.                   State the first law of thermodynamics  . Apply it to explain any 2 thermodynamic     process.

5.                   Using the first law of thermodynamics prove Mayer’s relation.

6.                   Explain the principle and working of a heat engine with necessary diagrams.

7.                   State the second law of thermodynamics.

8.                   Explain the principle of working of a refrigerator.

9.                   State Carnot’s theorem.

10.               State the postulates of kinetic theory.

11.               Derive an expression for the pressure exerted by an ideal gas from the postulates of kinetic    theory. And hence deduce a) the gas laws  b) the relation between the KE and temperature.

12.               State the number of degrees of freedom of a) hydrogen  b) ozone c) Neon

13.               State the law of equipartiton of energy.

14.               Prove that the ratio of specific heats of a mono atomic gas is 1.67.

15.               What is the specific heat capacity of a solid?

16.               State Dulong and Petit’s law.

CONCEPTUAL QUESTIONS

1.       What is the specific heat of a gas during isothermal process?

2.       What is the specific heat of a gas during adiabatic process?

3.       What is the efficiency of a Carnot’s engine working between steam point and ice point?

4.       When atmospheric air rises up it cools why?

5.       Draw the indicator diagram for a) isobaric process b) isochoric process.

6.       Two students A & B tries to increase the efficiency of a heat engine. A increases the temperature of source by 10K and B decreases the temperature of sink by 10K. In which case the efficiency  increases?

7.       Vessels A and B have the same volume. If the temperature and pressure in A is twice that in B what is the ratio of number of gas molecules in A and B?

8.       Why is cooling caused in evaporation?

9.       The ratio of rms velocities of 2 gases at the same temperature is 1: √ 2. Find the ratio of their vapour densities.

10.   What do you mean by Boltzmann constant. Give its SI unit.

11.   What is the ratio of rms velocity of the molecules of an ideal gas at 240K and 60K?