Chapter 9, Problem 9.132SP

Tell whether reactions with the following values of $\Delta H$ and $\Delta S$ are spontaneous or nonspontaneous and whether they are exothermic or endothermic.
(a) $\Delta H=-4\text{8 kJ; }\Delta S=+13\text{5 J/K at 400 K}$
(b) $\Delta H=-4\text{8 kJ; }\Delta S=-13\text{5 J/K at 400 K}$
(c) $\Delta H=+4\text{8 kJ; }\Delta S=+13\text{5 J/K at 400 K}$
(d) $\Delta H=+4\text{8 kJ; }\Delta S=-13\text{5 J/K at 400 K}$