Assertion (A) The thermodynamic function which determines the spontaneity of a process is the free energy. For process to be spontaneous, the change in free energy must be negative.
Reason (R) The change in free energy is related to the change in enthalpy and change in entropy. The change in entropy for a process must be always positive, if it is spontaneous.
1
Both A and R are true, and R is the correct explanation of A.
2
Both A and R are true, but R is not the correct explanation of A.
3
A is true, but R is false.
4
A is false, but R is true.