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One mole of an non linear triatomic ideal gas is expanded abiabatically at 300 K form 16 atm to 1 atm ltbr gt Find the value `DeltaS_(sys), DeltaS_(surr) & DeltaS_("total")` under the following conditions. (i) Expansion is carried out reversibly (ii) Expansion is carried out irreversibly (iii) Expansion is free.

Answer» Correct Answer - (i)` " "DeltaS_("sys")= nC_(v)ln .(T_(1))/(T_(2))+nRln .(V_(1))/(V_(2))= 0, q= 0,DeltaS_("surr")= - DeltaS_("sys")=DeltaS_("total")=0`
(ii)` " "DeltaS_("sys")= 1.702R," "DeltaS_("surr")=0 , DeltaS_("total")=DeltaS_("sys")=1.702 R`
(iii)` " "DeltaS_("sys")= nRln .(p_(1))/(p_(2))= 2.77 R, DeltaS_("surr")=(-q_("irr"))/(T) = 0, DeltaS_("total")= DeltaS_("sys") = 2.177 R`


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