1. Equal volumes of two gases at the same temperature and pressure have the same

2. What is the number of degrees of freedom of an ideal diatomic molecule at ordinary temperature?

3. In the equation, PV = RT, the V refers to the volume of:

4. Which of the following is the unit of specific

5. If 2 kcal, of heat is supplied to a system cause to change the internal energy of a gas is 5030 J, and external work done is 3350 J, then what is mechanical equivalent of heat?

6. Following gases are kept at the same temperature. Which gas possesses maximum r.m.s. speed?

7. 1 mole of H2 gas is contained in a box of volume V = 1.00 m3 at T = 300 K. The gas is heated to a temperature of T = 3000 K and the gas gets converted to a gas of hydrogen atoms. The final pressure would be

8. A vessel of volume V contains a mixture of 1 mole of hydrogen and 1 mole of oxygen. Let f₁(v)dv, denote the fraction of molecules with speed between v and (v + dv) with f₂(v)dv similarly for oxygen. Then

9. For a gas, the r.m.s. speed at 800K is

10. Energy supplied to convert unit mass of substance from solid to liquid state at its melting point is called

11. Latent heat of ice is

12. One mole of an ideal gas requires 207 J heat to raise the temperature by 10 K, when heated at constant pressure. If the same gas is heated at constant volume to raise the temperature by 10K, then heat required is

13. According to kinetic theory of gases, at absolute zero of temperature

14. An inflated rubber balloon contains one mole of an ideal gas, has a pressure p, volume V, and temperature T. If the temperature rises to 1.1T and the volume is increased to 1.05V, the final pressure will b

15. The temperature of a gas is -68°C. to what temperature should it be heated, so that the r.m.s. velocity of the molecules be doubled?

16. Average kinetic energy of molecules is

17. Which of the following can be the basis of sesparating a mixture of gases?

18. An ideal gas is that which can

19. Gases deviate from perfect gas behaviour because their molecules

20. The number of degrees of freedom for translatory motion are