1.

At 298 K , DeltaH_("combustio")^(@) (sucrose) = - 5737 KJ//mol & DeltaG_("combustio")^(@) ("sucrose") = - 6333 KJ//mol. Estimate additional non- PV workthat isobtainedby raisingtemperatureto 310 K, Assume Delta_(r) C_(p)= 0 for this temperature change

Answer»

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Solution :`at" "298 K`
`DeltaG_(1)^(@) = DeltaH^(@) = TDeltaS^(@)""...........(1)`
`DeltaS^(@) = (DeltaH^(@) -DeltaG^(@))/(T_(1))`
` = - 2 KJ// mol- K`
`at " " 310 K`
`DeltaG_(2)^(@) = DeltaH^(@) - T_(2) DeltaS^(@)""..........(2)`
`(because Delta_(r) C_(p) =0 "" thereforeDeltaH_(2) = DeltaH_(1) &DeltaS_(2) = DeltaS_(1))`
`DeltaG_(2)- DeltaG_(2)^(@) = (T_(2) - T_(1)) DeltaS^(@)`
`= + 12 xx 2 = + 24 KJ//mol`


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