Gibbs free energy spontaneity 2

Chemistry Level pending

Ethanol’s enthalpy of vaporization is \(38.7\) kJ mol\(^{-1}\) at its normal boiling point \(78\) °C. Calculate \(Δ G\) when \(2.00\) mol ethanol is vaporized reversibly at \(78.0\) °C and \(1.0\) atm.

Assume that the vapor is an ideal gas, and the volume of the liquid ethanol relative to the volume of its vapor is negligibly small.

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