An enthalpy diagram for a particular reaction is given in the figure. Is it possible to decide the spontaneity of a reaction from the given diagram? Explain.
(N/A) No,it is not possible to decide the spontaneity of a reaction solely from the enthalpy diagram.
Enthalpy change $(\Delta_rH)$ is only one of the contributing factors in determining the spontaneity of a reaction.
Another essential factor,the entropy factor $(\Delta S)$,must also be taken into consideration.
The overall spontaneity is determined by the Gibbs free energy change,given by the equation $\Delta G = \Delta H - T\Delta S$,where a reaction is spontaneous only if $\Delta G < 0$.
Enthalpy change $(\Delta_rH)$ is only one of the contributing factors in determining the spontaneity of a reaction.
Another essential factor,the entropy factor $(\Delta S)$,must also be taken into consideration.
The overall spontaneity is determined by the Gibbs free energy change,given by the equation $\Delta G = \Delta H - T\Delta S$,where a reaction is spontaneous only if $\Delta G < 0$.
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