Chemical Engineering Thermodynamics Book Questions Answers - Set 16 - ObjectiveBooks
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# Practice Test: Question Set - 16

1. (∂T/∂P)H is the mathematical expression for
(A) Specific heat at constant pressure (Cp)
(B) Specific heat at constant volume (Cv)
(C) Joule-Thompson co-efficient
(D) None of these

2. Pick out the Clausius-Clapeyron equation from the following:
(A) dP/dT = ∆H/TV
(B) ln P = - (∆H/RT) + constant
(C) ∆F = ∆H + T [∂(∆F)/∂T]P
(D) None of these

3. Throttling process is a/an __________ process.
(A) Reversible and isothermal
(B) Irreversible and constant enthalpy
(C) Reversible and constant entropy
(D) Reversible and constant enthalpy

4. 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

5. Cv for an ideal gas
(A) Does not depend upon temperature
(B) Is independent of pressure only
(C) Is independent of volume only
(D) Is independent of both pressure and volume

6. Generation of heat by friction is an example of a/an __________ change.
(A) Isothermal
(B) Irreversible
(D) Reversible

7. The internal energy of an incompressible fluid depends upon its
(A) Pressure
(B) Temperature
(C) Both (a) & (b)
(D) Neither (a) nor (b)

8. The variation of heat of reaction with temperature at constant pressure is given by the __________ law.
(A) Kelvin's
(B) Antoine’s
(C) Kirchoff’s
(D) None of these

9. In a working refrigerator, the value of COP is always
(A) 0
(B) < 0
(C) < 1
(D) > 1

10. The unit of fugacity is the same as that of the
(A) Pressure
(B) Temperature
(C) Volume
(D) Molar concentration

11. Ideal refrigeration cycle is
(A) Same as Carnot cycle
(B) Same as reverse Carnot cycle
(C) Dependent on the refrigerant's properties
(D) The least efficient of all refrigeration processes

12. Variation of equilibrium pressure with temperature for any two phases of a given substances is given by the __________ equation.
(A) Gibbs-Duhem
(B) Maxwell's
(C) Clapeyron
(D) None of these

13. When a system is in equilibrium for all possible processes, the differential or finite change of entropy is
(A) < 0
(B) > 0
(C) = 0
(D) None of these

14. Entropy of an ideal gas depends upon its
(A) Pressure
(B) Temperature
(C) Both (a) & (b)
(D) Neither (a) nor (b)

15. An irreversible process
(A) Is the analog of linear frictionless motion in machines
(B) Is an idealized visualization of behavior of a system
(C) Yields the maximum amount of work
(D) Yields an amount of work less than that of a reversible process

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