1.

For the process H_(2)O(l)rarrH_(2)O(g)at T=100^(@)C and 1 atmosphere pressure, the correct choice is

Answer»

`DeltaS_("system")gt0and DeltaS_("surroundin gs")gt0`
`DeltaS_("system")gt0and DeltaS_("surroundin gs")lt0`
`DeltaS_("system")lt0and DeltaS_("surroundin gs")gt0`
`DeltaS_("system")lt0and DeltaS_("surroundin gs")lt0`

Solution :At `100^(@)C` and 1 ATMOSPHERE PRESSURE `H_(2)O(l)iffH_(2)O(g)` is at equilibrium. For equilibrium `DeltaS_("total")=0 and DeltaS_("system")+DeltaS_("SURROUNDING")=0`
`therefore DeltaS_("system")gt0 and DeltaS_("surrounding")lt0`.


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