Question

A certain process has ΔSuniv > 0 at 25°C. What does one know about the process?

It is exothermic.
It is endothermic.
It is spontaneous at 25°C.
It will move rapidly toward equilibrium.
None of these choices are correct

Answer 1

The answer is it is spontaneous at 25°C.

The second law of thermodynamics states that the entropy of the universe is always increasing. This means that any process that increases the entropy of the universe is spontaneous. A process with ΔSuniv > 0 at 25°C is increasing the entropy of the universe, so it is spontaneous at 25°C.

The other choices are not correct. A process with ΔSuniv > 0 at 25°C could be exothermic or endothermic. It will not necessarily move rapidly toward equilibrium.

Step-by-step explanation: