Question

if an endothermic reaction is non spontaneous at freezing point of water and becomes feasible as its boiling point then​

Answer 1

Answer:

ΔG=ΔH−TΔS

Since the process is non-spontaneous at lower temperature but becomes spontaneous at higher temperature, this implies both ΔH and ΔS are positive.

This is possible because at high temperature, $$\displaystyle T\Delta S>\Delta H$$ which gives a negative value for ΔG.