JEE PYQ: Chemical Equilibrium Question 13
Question 13 - 2020 (05 Sep Shift 1)
Consider the following reaction:
$\text{N}_2\text{O}_4(g) \rightleftharpoons 2\text{NO}_2(g)$; $\Delta H^0 = +58$ kJ
For each of the following cases ((i), (ii)), the direction in which the equilibrium shifts is: (i) Temperature is decreased (ii) Pressure is increased by adding $\text{N}_2$ at constant T.
(1) (i) towards product, (ii) towards product
(2) (i) towards reactant, (ii) towards product
(3) (i) towards reactant, (ii) no change
(4) (i) towards product, (ii) no change
Show Answer
Answer: (3) (i) towards reactant, (ii) no change
Solution
Endothermic reaction: decreasing T shifts towards reactant. Adding inert gas at constant T does not shift equilibrium.
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