A process is spantaneous at a given temperature if

The process is spontaneous at the given temperature, if

A process is spontaneous at all temperatures when

An endothermic process is non-spontaneous at some temperature. It can be spontaneous at………….temperature.

An endothermic process is non-spontaneous at some temperature . It can be spontaneous at………….temperature.

In which case, process will be spontaneous at all temperature?