Spontaneous with Temperature Increase?

[Dhwani Krishnan 1G]

Can a nonspontaneous process with a positive deltaS become spontaneous if the temperature is increased (assuming that deltaH and deltaS are both independent of temperature)?

[Kevin Tang 4L]

Yes, when delta H is positive and delta S is positive, it will be spontaneous at high temperatures and nonspontaneous at low temperatures.
This is because when delta S is positive, -T Delta S will be negative. If the T in the equation is large enough, then the whole combined -T Delta S can be greater than the delta H, making the Delta G negative, making it spontaneous.

Hope this helps correct me if I'm wrong.

[Michael Novelo 4G]

The previous statement is correct. For Gibbs free energy to be spontaneous it has to be negative so with a high temperature and positive value of delta S and a positive value of delta H the answer will always be negative of delta G which indicates it's spontaneous. Higher temperature increase does not mean it's always spontaneous however if delta S is a negative value and delta H is a positive value then it will give you a positive value of delta G since it's H - TS. The signs of H and S are important when figuring out whether or not temperature increase indicates if it is spontaneous.