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For a reaction at 25^(@)C, enthalpy and ...

For a reaction at `25^(@)C`, enthalpy and entropy change are `-11.7xx10^(3)J" "mol^(-1) and -105"J "mol^(-1)K^(-1)` respectively. What is the Gibbs free energy?

A

15.05 kJ

B

19.59 kJ

C

2.55 Kj

D

22.55 kJ

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaG=DeltaH-TDeltaS, T=25+273=298 K`
`=-11.7xx10^(3)-298xx(-105)=19590 J=19.59 kJ`.
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