# CBSE Class 11-Physics: Heat and Thermodynamics Assignment 1

Get top class preparation for CBSE right from your home: fully solved questions with step-by-step explanation- practice your way to success.

Question 1:

The coefficient of linear expansion of an in homogenous rod changes linearly from to from one end to the other end of the rod. The effective coefficient of linear expansion of the rod is

a.

b.

c.

d.

Question 2:

An Aluminum Rod of length rest on a smooth horizontal base if the temperature is increase by . What will be the longitudinal strain developed?

a.

b. Zero

c.

d. None of the above

Question 3:

The ratio of adiabatic bulk modulus and isothermal bulk modulus of a

a.

b.

c.

d.

Question 4:

An animal of is running with a speed of . If all the of animal can be used in increasing water from to , how much water can be heated with this energy

Question 5:

A copper cube of mass slides down on a rough inclined plane of inclination at a constant speed. Assume that any loss in mechanical energy goes into copper block as thermal energy find the increase in thermal energy of the block as it slides down through . specific heat capacity of copper

Question 6:

It is known that curves are Isobaric, Isothermal, Adiabatic process then when one is correct

a, A - Adiabatic, B - Isothermal, C - Isobaric

b, A- Isothermal, B - Adiabatic, C - Isobaric

c, A - Isobaric, B - Isothermal C - Adiabatic

d, None of these

Question 7:

container has a mixture of mole of oxygen and moles of nitrogen at .The ratio of average rotational kinetic energy per molecule to that per molecule is

a)

b)

c)

d) None of these

Question 8:

The sprinkling of water reduces the temperature of the closed room

a) The water has large latent heat of vaporization

b) Water is bad conductor of heat

c) Specific heat of water is high

d) The temperature of water is less than that of room

Question 9:

Two boxes A and B containing different ideal gases are placed on table Box A contain one mole of gas m where at Temperature Box B contains one mole of gas n where at temperature

The boxes are then put into thermal contact with each other and heat flows between until the gases reach a common final temperature

Which of the following relation is correct?

a)

b)

c)

d)

Question 10:

During an adiabatic process, the square of the pressure of a gas is proportional to the fifth power of its absolute temperature. The ratio of specific heat for that gas is

a.

b.

c.

d.