Answer
(a) Increase the Kc
(b) Decrease the Kc
(c) Will not affect the Kc
Work Step by Step
1. Identify if the reaction is exothermic or endothermic.
$\Delta H \gt 0$: Endothermic
$\Delta H \lt 0$: Exothermic
(a) Endothermic.
(b) Exothermic.
(c) Neither.
2. If the reaction is endothermic raising the temperature favours the forward reaction, increasing products, increasing Kc; if it is exothermic, it will favor the reverse reaction, increasing reactants, decreasing Kc.
(a) Increase the Kc
(b) Decrease the Kc
(c) Will not affect the Kc
