Enthalpy of a gas depends upon its___________________?

Related Mcqs:

1. Enthalpy of formation of NH3 is – 46 kJ/kg mole. The enthalpy change for the gaseous reaction, 2NH3 → N2 + 3H2, is equal to _____________ kJ/kg. mole?

   A. 46
   B. 92
   C. -23
   D. -92

2. 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

3. In an ideal gas mixture, fugacity of a species is equal to its___________________?

   A. Vapor pressure
   B. Partial pressure
   C. Chemical potential
   D. None of these

4. The density of a gas ‘X’ is twice that of another gas ‘Y’. If the molecular weight of gas ‘Y’ is ‘M’; then the molecular weight of the gas ‘X’ will be________________?

   A. 2M
   B. M/2
   C. M
   D. M/4

5. Entropy of an ideal gas depends upon its__________________?

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

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

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

7. The work done in an adiabatic change in a particular gas depends upon changes in the ______________ only?

   A. Temperature
   B. Specific heat
   C. Volume
   D. Pressure

8. The internal energy of a gas obeying P (V – b) RT (where, b is a positive constant and has a constant Cv), depends upon its________________?

   A. Pressure
   B. Volume
   C. Temperature
   D. All A, B. & C

9. The partial molar enthalpy of a component in an ideal binary gas mixture of composition Z, at a temperature T and pressure P, is a function only of________________?

   A. T
   B. T and P
   C. T, P and Z
   D. T and Z

10. Entropy change of the reaction, H2O (liquid) → H2O (gas), is termed as the enthalpy of___________________?

    A. Solution
    B. Vaporisation
    C. Formation
    D. Sublimation