Although the dissolution of ammonium chloride in water is an endothermic reaction, even then it is spontaneous because

Options

A. `Delta H` is positive , `Delta S` is -ve
B. `Delta H` is + ve, `Delta S` is zero
C. `Delta H` is positive, `T Delta S lt Delta H`
D. `Delta H` is +ve, `Delta S` is positive and `Delta H lt T Delta S`

Answer

D

Explanation

Even if `Delta H gt 0`, if `Delta S gt 0 and Delta H - T Delta S lt 0` then spontaneous.