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Which of the following thermodynamic rel...

Which of the following thermodynamic relation is correct?

A

`dG=VdP-SdT`

B

`dU=PdV+TdS`

C

`dH=-VdP+TdS`

D

`dG=VdP+SdT`

Text Solution

Verified by Experts

The correct Answer is:
A
`dG=dH-TdS-SdT`
`(G=H-TS)`
`dH=dU+PdV+VdP`
`(H=U+PV)`
and `dU=TdS-PdV`
`thereforedG=(TdS-PdV)+PdV+VdP-TdS-SdT`
`dG=VdP-SdT`
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