Question

AH = 44.0 kJ/mol AS = 0.119 kJ/mol K The following reaction takes place at 120°C: H20(1) - H2O(g) Which of the following must
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Answer #1

Temeprature in Kelvin (T) = 273 + 120 = 393 K

The equation for Gibbs Free energy change ( \Delta G) = \Delta H - T * \Delta S

= 44 - 393 * 0.119 = -2.767 KJ/mol

Since \Delta G is negative, the reaction is spontaneous and \Delta G<0. Two of the options are right

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