Question

A reaction occurs spontaneously if:

• A. T∆S = ∆H and both ∆H and ∆S are positive
• B. T∆S>∆H and both ∆H and ∆S are positive
• C. T∆S <∆H and both ∆H and ∆S are positive
• D. T∆S > ∆H and ∆H is positive and ∆S is negative

Answer 1

The correct option is B T∆S>∆H and both ∆H and ∆S are positive

For spontaneous reaction ∆G = - ve

∆G = ∆H - T∆S

∆H = +ve, ∆S = +ve and T∆S >∆H