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    Thermodynamics : Spontaneity of Reactions and Gibbs Free E

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    Urea (NH2CONH2), an important nitrogen fertilizer, is produced industrially by the reaction
    2 NH3(g) + CO2(g) → NH2CONH2(aq) + H2O(l)

    Given that delta G^o = -13.6 kJ, calculate delta G at 25 oC for the following sets of conditions.
    (a) 10 atm NH3, 10 atm CO2, 1.0 M NH2CONH2
    (b) 0.1 atm NH3, 0.1 atm CO2, 1.0 M NH2CONH2
    Is the reaction spontaneous for the conditions in part (a) and / or part (b)?

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    Solution Summary

    This solution explains how to calculate the Gibbs free energy of a reaction based on the standard Gibbs energy and equilibrium conditions. This solution also predicts how spontaneous the reaction will be based on this energy value.