The internal energy of an ideal gas is a function of its _____________ only?

Related Mcqs:

1. For an ideal gas, the internal energy depends upon its ____________ only?

   A. Molecular size
   B. Temperature
   C. Volume
   D. Pressure

2. The internal energy of an ideal gas does not change in a reversible _____________ process?

   A. Isothermal
   B. Adiabatic
   C. Isobaric
   D. Isometric

3. Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is_____________________?

   A. Positive
   B. Negative
   C. Zero
   D. Infinity

4. The compressibility factor of a gas is given by (where, V1 = actual volume of the gas V2 = gas volume predicted by ideal gas law)____________________?

   A. V1/V2
   B. V2/V1
   C. V1 – V2
   D. V1.V2

5. If the internal energy of an ideal gas decreases by the same amount as the work done by the system, then the____________________?

   A. Process must be isobaric
   B. Temperature must decrease
   C. Process must be adiabatic
   D. Both B. and C.

6. Internal energy is independent of the ____________ for an ideal gas?

   A. Pressure
   B. Volume
   C. Both A. & B.
   D. Neither A. nor B.

7. A car tyre of volume 0.057 m3 is inflated to 300 kPa at 300 K. After the car is driven for 10 hours, the pressure in the tyre increases to 330 kPa. Assume air is an ideal gas and Cv for air is 21 J/mole.K. The change in the internal energy of air in the tyre in J/mole is__________________?

   A. 380
   B. 630
   C. 760
   D. 880

8. Translational kinetic energy of molecules of an ideal gas is proportional to (where, T = absolute temperature of the gas)__________________?

   A. T
   B. √T
   C. T2
   D. 1/√T

9. When a gas in a vessel expands, its internal energy decreases. The process involved is________________?

   A. Reversible
   B. Irreversible
   C. Isothermal
   D. Adiabatic

10. Assuming applicability of ideal gas law, the pure component volume of the vapor in a saturated gas can be calculated from theoretical relationship. The volumetric composition of a vapor saturated gas is independent of the___________________?

    A. Nature of the liquid
    B. Nature of the gas
    C. Temperature of the liquid
    D. Total pressure