1.

The condition for spontaneity of a process is

Answer»

<P>lowering of entropy at constant temperature and PRESSURE
lowering of Gibbs free ENERGY of system at constant temperature and pressure
increase of entropy of system at constant temperature and pressure
increase of Gibbs free energy of the universe at constant temperature and pressure.

Solution :`dG_(P,T) = -ve` is the criterion for SPONTANEITY .


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