Question

2. The thermodynamic criterion for spontaneity of a process in a system under constant volume
and temperature and in the absence of any work other than expansion work (if any) is
(a) change in entropy is positive
(b) change in enthalpy is negative
(c) change in Helmholtz free energy is negative (d) change in Gibbs free energy in negative​

Answer 1

Answer:

b)  change in enthalpy is negative

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Answer 2

in question they mentioned that the system under constant volume and temperature. for that reason the answer will be c