A reaction occurs spontaneously if:

A reaction occurs spontaneously in forward direction if

A reaction occurs spontaneously in forward direction if

If an eddothermic reaction occurs spontaneously at constant temperature and pressure, then which of the following is true?

If an endothermic reaction occurs spontaneously at constant T and P , then which of the following is true

The enthalpy change for a given reaction at 298 K is -x cal mol^(-1) . If the reaction occurs spontaneously at 298 K , the entropy change at that temperature

The enthalpy change for a given reaction at 298 K is -x cal mol^(-1) . If the reaction occurs spontaneously at 298 K , the entropy change at that temperature

The following reaction occurs spontaneously at 1 atm and 298K. NH_(3)(g)+HC l(g) to NH_(4)Cl(s) . Without doing calculation predict the sign of DeltaH for this process.

Do all exothermic reactions occur spontaneously?