Question
When does endothermic processs become spontaneous? Explain.
Solution
It becomes spontaneous at high temperature. This is because at high temperature, the magnitude of the favourable factors T∆S increases while ∆H does not change much. Hence at high temperature, the magnitude of T∆S will be quite large and more than ∆H so that ∆G becomes negative. This means that endothermic processes are favoured and are more probable at high temperature.
