Identify the correct statement regarding a spontaneous process: (i) Lowering of energy in the process is the only criterion for spontaneity. (ii) For a spontaneous process in an isolated system, the change in entropy is positive. (iii) Endothermic processes are never spontaneous. (iv) Mostly of the exothermic processes are spontaneous.

Question

Identify the correct statement regarding a spontaneous process: (i) Lowering of energy in the process is the only criterion for spontaneity. (ii) For a spontaneous process in an isolated system, the change in entropy is positive. (iii) Endothermic processes are never spontaneous. (iv) Mostly of the exothermic processes are spontaneous. (A) only (i) (B) (ii) and (iv) (C) (i) and (ii) (D) (i) and (iii)

Tardigrade Admin · Accepted Answer

Spontaneity of reaction depends on tendency to acquire minimum energy state and maximum randomness. For a spontaneous process in an isolated system, the change in entropy is positive.