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Which of the following statement(s) is/are false?A. All adiabatic processes are isoentropic (or isenthermic) processesB. When `(DeltaG_("system"))_(TP) lt 0`, the reaction must be exothermicC. `dG=VdP-SdT ` is applicable for closed system, both PV and non-PV workD. the heat of vaporisation of water at `100^(@)C` is 40.6 KJ/mol . When 9 gm of water vapour condenses to liquid at `100^(@)C` of 1 atm , then `DeltaS_("system")=54.42 J//K` |
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Answer» Correct Answer - A::B::C::D (A) Reversible adiabatic process is isoentropic (B) Reaction is spontaneous , need not be exothermic. (C) Only when PV work is innvoled (D) `DeltaS_("system") =(DeltaH_("System"))/(T_(b)) =-(40600)/(373xx2) =-54.42 J//K` |
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