What is the correct answer?


In any spontaneous process, the __________ free energy decreases.

A. Helmholtz

B. Gibbs

C. Both a & b

D. Neither 'a' nor 'b'

Correct Answer :

C. Both a & b

Related Questions

Linde gas liquefaction process employs cooling Equilibrium constant decreases as the temperature On opening the door of an operating refrigerator kept in a closed room,… Specific/molar Gibbs free energy for a pure substance does not change… Pick out the wrong statement. Extensive properties of a thermodynamic system depend upon the __________… Equilibrium constant of a reaction varies with the Work done may be calculated by the expression ∫ p dA for __________… A reasonably general expression for vapourliquid phase equilibrium at… When dilute aqueous solutions of two salts are mixed, the process is associated… Gases are cooled in Joule-Thomson expansion, when it is __________ inversion… Change of state namely evaporation condensation, freezing and melting… Gibbs free energy (G) is represented by, G = H - TS, whereas Helmholtz… The standard state of a gas (at a given temperature) is the state in which… Law of corresponding states says that The temperature at the eutectic point of the system is the __________… Claude's liquefaction process employs the cooling of gases by During a reversible isothermal expansion of an ideal gas, the entropy… The equation, Cp - Cv = R, is true for __________ gas. What happens in a reversible adiabatic compression? When a system in equilibrium is subjected to a change in temperature,… Free energy change at equilibrium is The gas law (PV = RT) is true for an __________ change. When a system is in equilibrium for all possible processes, the differential… Which of the following is a thermodynamic property of a system? Vapour which is at a pressure smaller than the saturation pressure for… The co-efficient of performance (COP) of a refrigerating system, which… Joule-Thomson effect i.e., a throttling process is a constant __________… Melting of ice exemplifies a/an The value of gas constant 'R' is