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For vaporization of water at 1 atm pressure, the
P values of \( \Delta \mathrm{H} \) and \( \Delta \mathrm{S} \) are \( 40.63 \mathrm{~kJ} \mathrm{~mol}^{-1} \) and 108.8

W \( \mathrm{JK}^{-1} \mathrm{~mol}^{-1} \) respectively. The temp. at which Gibbs energy change \( (\Delta \mathrm{G}) \) for this transformation will be zero is:
(1) \( 273.4 \mathrm{~K} \)
(2) \( 393.4 \mathrm{~K} \)
(3) \( 373.4 \mathrm{~K} \)
(4) \( 293.4 \mathrm{~K} \)
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