For a real gas, the chemical potential is given by:
A. RT d ln P
B. RT d ln f
C. R d ln f
D. None of these
The free energy change for a chemical reaction is given by (where, K = equilibrium constant):
A. RT ln K
B. -RT ln K
C. -R ln K
D. T ln K
For the reversible exothermic reaction, N2 + 3H2 ⇌ 2NH3, increase of pressure would:
A. Shift the equilibrium towards right
B. Give higher yield of NH3
C. Both B. and C
D. Neither A. nor B
Heat is added at constant pressure in an ideal ____ cycle:
A. Stirling
B. Brayton
C. Rankine
D. Both B. and C
PVγ = Constant (where, γ = Cp/Cv) is valid for a/an ______ process:
A. Isothermal
B. Isentropic
C. Isobaric
D. Adiabatic
The expression for entropy change given by, ΔS = – nR ln (P2/P1), holds good for:
A. Expansion of a real gas
B. Reversible isothermal volume change
C. Heating of an ideal gas
D. Cooling of a real gas
dW and dq are not the exact differential, because q and W are:
A. State functions
B. Path functions
C. Intensive properties
D. Extensive properties
(∂E/∂T)V is the mathematical expression for:
A. CV
B. Enthalpy change
C. Free energy change
D. None of these
A/an ____ system is exemplified by a vessel containing a volatile liquid in contact with its vapor:
A. Isolated
B. Closed
C. Open
D. None of these
In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when:
A. n = y = 1.4
B. n = 0
C. n = 1
D. n = 1.66
