Question

How will temperature affect the spontaneity of a reaction with positive H and S?

A. It will be spontaneous only at T = H/S.
B.Changing the temperature will not affect spontaneity.
C.A low temperature will make it spontaneous.
D.A high temperature will make it spontaneous.

Answer 1

D. A high temperature will make it spontaneous.

Step-by-step explanation:

A P E X

Answer 2

D.A high temperature will make it spontaneous.

Step-by-step explanation:

we know that

Δ G = Δ H - TΔS

For spontaneous reaction

Δ G should be negative . If Δ G = 0

Δ H = TΔS

T = Δ H / Δ S

At temperature above this T , Δ G becomes negative if Δ S and ΔH are positive .

So at a high temperature will make it spontaneous.