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Calculate the change in molar Gibbs ener...

Calculate the change in molar Gibbs energy of carbon dioxide gas at `20^(@)` C when it is isothermally compressed from 1.0 bar to 2.0 bar.

A

2.4 kJ/mol

B

`-2.4` kJ/mol

C

`1.7 kJ//mol`

D

`-1.7` kJ/mol

Text Solution

Verified by Experts

The correct Answer is:
C
For an isothermal process: dG = VdP `rArr DeltaG = intVdP = int (nRT)/P.dP`
`rArr DeltaG = nRT ln P_(2)/P_(1) = 1 xx 8.314 xx 293 ln 2/1 = +1.7 kJ//mol`
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