---

1. The kinetic energy of gas molecules depends on

A. Pressure B. Temperature C. Volume D. Density

---

2. The root mean square velocity of gas molecules is proportional to

A. T B. √T C. 1/T D. T²

---

3. The ratio of specific heats Cp/Cv for a diatomic gas is

A. 1.33 B. 1.4 C. 1.67 D. 1.5

---

4. The pressure exerted by an ideal gas is due to

A. Collisions of gas molecules with the container walls B. Intermolecular forces C. Gravitational forces D. Random orientation of molecules

---

5. The internal energy of an ideal gas is a function of

A. Pressure only B. Volume only C. Temperature only D. Temperature and pressure

---

6. The degrees of freedom for a monoatomic gas are

A. 2 B. 3 C. 5 D. 6

---

7. The mean free path of gas molecules increases with

A. Increase in pressure B. Decrease in temperature C. Increase in volume D. Increase in the number of molecules

---

8. The molar specific heat capacity at constant volume for a diatomic gas is

A. 3R/2 B. 5R/2 C. 7R/2 D. R

---

9. The average kinetic energy per molecule of an ideal gas is

A. 1/2 kT B. 3/2 kT C. 5/2 kT D. kT

---

10. The total kinetic energy of one mole of a gas is given by

A. 3/2 RT B. 5/2 RT C. RT D. 7/2 RT

---

11. The internal energy of one mole of a monoatomic gas at temperature T is

A. 3/2 RT B. 5/2 RT C. RT D. 7/2 RT

---

12. The root mean square speed of gas molecules is

A. Directly proportional to temperature B. Directly proportional to the square root of temperature C. Inversely proportional to temperature D. Inversely proportional to the square root of temperature

---

13. The number of molecules in one mole of any gas is equal to

A. R/k B. k/R C. NA D. 1/NA

---

14. The ratio of Cp to Cv for a triatomic linear gas is

A. 1.67 B. 1.33 C. 1.4 D. 1.29

---

15. For an ideal gas, the pressure is directly proportional to

A. Density at constant temperature B. Volume at constant temperature C. Square of density at constant temperature D. None of these

---

16. The average kinetic energy of a molecule of an ideal gas at temperature T is proportional to

A. T B. T² C. 1/T D. 1/T²

---

17. The temperature at which the root mean square speed of oxygen molecules is equal to that of hydrogen molecules at 300 K is

A. 4800 K B. 600 K C. 1200 K D. 9600 K

---

18. The ratio of specific heats Cp/Cv for a monoatomic gas is

A. 1 B. 5/3 C. 7/5 D. 1.33

---

19. The mean free path of gas molecules is inversely proportional to

A. Pressure B. Volume C. Temperature D. Number of molecules per unit volume

---

20. The kinetic theory of gases is applicable to

A. Ideal gases only B. Real gases at all temperatures C. Real gases at low temperatures D. Real gases at high temperatures and low pressures