Indicate the change that takes place when the temperature is decreased for each of the reactions at equilibrium in Sample Problem 9.8.
Sample Problem 9.8
Indicate the change that takes place when the temperature is increased for each of the following systems at equilibrium:
a. N2(g) + 3H2(g) ⇄ 2NH3(g) + 92 kJ
b. N2(g) + O2(g) + 180 kJ ⇄ 2NO(g)
Solution
a. When the temperature is increased for an exothermic reaction, the system shifts in the direction of the reactants to remove heat.
b. When the temperature is increased for an endothermic reaction, the system shifts in the direction of the products to remove heat.
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