For a non-spontaneous reaction, at `30^(@)C, DeltaH gt 0` & `DeltaS gt 0`. The reaction becomes spontaneous, by

If Delta H gt 0 and Delta S gt 0 , the reaction proceeds spontaneously when :-

If Delta H gt 0 and Delta S gt 0 , the reaction proceeds spontaneously when :-

A reaction is non-spontaneous when:

DeltaH gt DeltaE for the reaction

A reaction has DeltaH^(@) gt0 and DeltaG^(@) gt0 25^(@)C . This reaction:

The following reaction is non-spontaneous

At a given temperature and pressure, for a chemical reaction DeltaH gt0 and DeltaS lt 0 . The reaction is non-spontaneous at all temperature. But the reverse reaction is spontaneous at all temperature-give reason.