For an isothermal process, the internal energy of a gas____________________?

Related Mcqs:

1. 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...

2. Internal energy change of a system over one complete cycle in a cyclic process is__________________?

   A. Zero B. +ve C. -ve D. Dependent on the path...

3. Internal energy is equal to the heat absorbed in case of a/an ______________ process?

   A. Constant volume B. Polytropic C. Adiabatic D. Constant pressure...

4. For a constant volume process _____________ by the system is used only to increase the internal energy?

   A. Heat absorbed B. Work done C. Both A. & B D. Neither A. nor B...

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

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

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

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

7. The change in __________ is equal to the reversible work for compression in steady state flow process under isothermal condition?

   A. Internal energy B. Enthalpy C. Gibbs free energy D. Helmholtz free energy...

8. The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is_________________?

   A. R loge 4 B. R log10 4 C. Cv log10 4 D. Cv loge 4...

9. In an isothermal process on an ideal gas, the pressure increases by 0.5 percent. The volume decreases by about _____________ percent?

   A. 0.25 B. 0.5 C. 0.75 D. 1...

10. With increase in temperature, the internal energy of a substance___________________?

    A. Increases B. Decreases C. Remains unchanged D. May increase or decrease; depends on the substance...