Given reaction is $2 X_{(g)} + Y_{(g)} \rightleftharpoons 2 Z_{(g)} + 80 \ kcal$. Which combination of pressure and temperature gives the highest yield of $Z$ at equilibrium?

For the formation of $NH_{3(g)}$ from $H_{2(g)}$ and $N_{2(g)}$,which one of the following graphs represents the yield of ammonia at equilibrium? (Assume $T_1 < T_2$,unless mentioned)

Consider the following reaction:
$N_{2}O_{4(g)} \rightleftharpoons 2NO_{2(g)} ; \Delta H^{0} = +58 \ kJ$
For each of the following cases $(a, b)$,determine the direction in which the equilibrium shifts:
$(a)$ Temperature is decreased
$(b)$ Pressure is increased by adding $N_{2}$ at constant $T$ and constant $V$

The yield of the products in the reaction,$A_{2(g)} + 2B_{(g)} \rightleftharpoons C_{(g)} + Q \ kJ$ would be higher at

Write the effect of concentration change on equilibrium and explain it with a suitable example.

The reaction $2SO_{2(g)} + O_{2(g)} \rightleftharpoons 2SO_{3(g)} + q$ is favored by: