A spontaneous reaction is impossible if

In which case, a spontaneous reaction is impossible at any temperature:

In which case,a spontaneous reaction is impossible at any temperature [Delta H+ve,Delta S+ve] , [Delta H+ve,Delta S-ve] , [Delta H-ve,Delta S-ve] , [" in all cases "]

Spontaneous reactions are

Spontaneous reactions are

The spontaneous nature of a reaction is impossible if

The spontaneous nature of a reaction is impossible if :

The spontaneous nature of a reaction is impossible if:

The spontaneous nature of a reaction is impossible if

The occurence of reaction is impossible if