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Calculate the change in molar Gibbs energy for the process NH3(l) --> NH3(g) at 1 atm...

Calculate the change in molar Gibbs energy for the process NH3(l) --> NH3(g) at 1 atm and (a) -15.0 ºC; (b) -45 ºC . In each case, indicate whether vaporization would be spontaneous.

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