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Chemistry

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The following reaction has the following standard thermodynamic parameters:

Reaction: C(g) + D(g)----> E(g)
Delta H rxn=-26.1kJ/mol and
Delta S rxn=-69.8J/(mol*K).

Calculate the temperature at which the reaction becomes nonspontaneous.

  • Chemistry -

    DG = DH -TDS
    When DG is - the reaction is spontaneous, when + it is spontaneous the other direction, the mid-point is 0. Set DG = 0 and substitute DH and DS into the equation. Solve for T. Remember DH is given in kJ and DS is given in J(not kJ).

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