1.

According to second law of thermodynamics, a process (reaction) is spontaneous, if during the process

Answer»

`DeltaS_("universe")GT0`
`DeltaS_("universe")=0`
`DeltaH_("system")=0`
`DeltaS_("universe")=DeltaS_("system")`

Solution :When a spontaneous (naturallyh occuring) process TAKES place, it is ACCOMPANIED by INCREASE in entropy, i.e.,
`DeltaS_("universe")=DeltaS_("system")+DeltaS_("surroundings")gt0`.


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