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

For a reaction at `25^(@)C`, enthalpy and entropy changes are `-11.7xx10^(3)" J "mol^(-1) and -105" J "mol^(-1)K^(-1)` respectively. What is the Gibb's 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

`T=25+273=298K`,
`DeltaG=DeltaH-TDeltaS=-11.7xx10^(3)-298xx(-105)`
`=19590J=19.59kJ`

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