Q. The coefficient of linear expansion of an inhomogeneous rod changes linearly from to from one end to the other end of the rod. The effective coefficient of linear expansion of rod is :

Kinetic Theory Report Error

A

B

C

D

Solution:

We consider an element at a distance from one end of width where coefficient of expansion will be

Expansion in element is
Total expansion

Where we get

Questions from Kinetic Theory

1. Which one of the following is not an assumption in the kinetic theory of gases?

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2. A gas at one atmosphere and 100 mL is mixed with another gas of equal moles at 0.5 atm and having volume 50 mL in flask of 1 L. What is their final pressure?

3. Two moles of monoatomic gas is mixed with three moles of a diatomic gas. The molar specific heat of the mixture at constant volume is

4. At what temperature is the root mean square speed of an atom in an argon gas cylinder equal to the rms speed of a helium gas atom at - ? (Atomic mass of and )

5. In a process, temperature and volume of one mole of an ideal monoatomic gas are varied according to the relation , where is a constant. In this process the temperature of the gas is incresed by . The amount of heat absorbed by gas is (R is gas constant) :

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