For isothermal expansion, which of the following is true?

Δ P = 0

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Δ S = 0

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Δ G = 0

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Δ U = 0

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Solution

The correct option is B $Δ U = 0$
In an isothermal expansion, the temperature remains constant,
$Δ T = 0$
$∴ Δ U = 0$
Hence, option $D$ is correct.

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