Question

Which statement about spontaneous and nonspontaneous processes is correct? Spontaneous processes are favored by a decrease in Delta. H, but nonspontaneous reactions are favored by an increase in Delta. H. Spontaneous processes are favored by a decrease in Delta. S, but nonspontaneous reactions are favored by an increase in Delta. S. An increase in Delta. S favors both spontaneous and nonspontaneous processes. A decrease in Delta. H favors both spontaneous and nonspontaneous processes.

Answer 1

The statement correct for the processes are spontaneous reaction have negative Delta H and non-spontaneous reaction has positive Delta H. Hence, option A is correct.

The value of Delta H in the reaction is the change in enthalpy of the reaction. The enthalpy of the reaction determines the reaction to be spontaneous or non-spontaneous.

What determines spontaneous and non-spontaneous reaction?

The spontaneous reaction is required with the energy input for the reaction to proceed. The energy is required by the system thus, the value of Delta H is negative.

The non-spontaneous reaction requires with the loss of energy in the formation of the product. The energy released gives the values of Delta H positive.

Thus, the statement correct for the processes are spontaneous reaction have negative Delta H and non-spontaneous reaction has positive Delta H. Hence, option A is correct.

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