________________ decreases during adiabatic throttling of a perfect gas?

Related Mcqs:

1. The adiabatic throttling process of a perfect gas is one of constant enthalpy_________________?

   A. In which there is a temperature drop B. Which is exemplified by a non-steady flow expansion C. Which can be performed in a pipe with a constriction D. In which there is an increase in temperature...

2. On a P-V diagram of an ideal gas, suppose a reversible adiabatic line intersects a reversible isothermal line at point A. Then at a point A, the slope of the reversible adiabatic line (∂P/∂V)s and the slope of the reversible isothermal line (∂P/∂V)T are related as (where, y = Cp/Cv) ?

   A. (∂P/∂V)S = (∂P/∂V)T B. (∂P/∂V)S = [(∂P/∂V)T]Y C. (∂P/∂V)S = y(∂P/∂V)T D. (∂P/∂V)S = 1/y(∂P/∂V)T...

3. After throttling, gas temperature___________________?

   A. Decreases B. Increases C. Remain same D. May increase or decrease; depends on the nature of the gas...

4. All gases except ____________ shows a cooling effect during throttling process at atmospheric temperature and pressure?

   A. Oxygen B. Nitrogen C. Air D. Hydrogen...

5. All gases during throttling process at atmospheric temperature and pressure show a cooling effect except__________________?

   A. CO2 B. H2 C. O2 D. N2...

6. 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...

7. 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...

8. 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...

9. Specific heat of a gas for a reversible adiabatic process is________________?

   A. Negative B. Zero C. Infinity D. None of these...

10. The difference between isothermal compressibility and adiabatic compressibility for an ideal gas is____________________?

    A. 0 B. +ve C. -ve D. ∞...