Question

Consider a reaction that has a positive ΔH and a positive ΔS. Which of the following...

Consider a reaction that has a positive ΔH and a positive ΔS. Which of the following statements is TRUE?

1) This reaction will be nonspontaneous only at high temperatures.
2) This reaction will be nonspontaneous at all temperatures.
3) This reaction will be spontaneous only at high temperatures.
4) This reaction will be spontaneous at all temperatures.

5) It is not possible to determine without more information.

I thought it will be non spontaneous at all temp because spontaneous reaction should have negative H and positive S

but the answer is 3. Why?

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