What effect will an increase in temperature have on the \({K_{\text{c}}}\) value and the position of equilibrium in the following reaction?

\[\begin{array}{*{20}{l}} {{{\text{N}}_{\text{2}}}{\text{(g)}} + {\text{3}}{{\text{H}}_{\text{2}}}{\text{(g)}} \rightleftharpoons {\text{2N}}{{\text{H}}_{\text{3}}}{\text{(g)}}}&{\Delta H = - 92{\text{ kJ}}} \end{array}\]

B

The difficulty index for this question was 58%, with incorrect responses distributed quite evenly over the distracters. It did however prove to be the best discriminator on the paper with a discrimination index of 0.64.