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Select the incorrect expression from the following expressions.A. `DeltaS_("total")=DeltaS_("system")+DeltaS_("surr")`B. `DeltaS_("surr")=(DeltaH_("surr"))/(T)=-(DeltaH_("sys"))/(T)`C. `DeltaS_("total") lt 0` (spontaneous process)D. `DeltaG=Delta-TDeltaS` |
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Answer» Correct Answer - C We know that, `DeltaS_("total")=DeltaS_("system")+DeltaS_("surr")` Also, entropy change of surroundings `DeltsS_("surr")=(DeltaS_("surr"))/(T)=-(DeltaH_("sys"))/(T)` For spontaneous process, `DeltaS_("total")gt0` and `DeltaG=Delta-TDeltaS` |
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