For the following reaction system at equilibrium, which one of the changes would cause the equilibrium to shift to the right?

2NOBr(g) ⇌ 2NO(g) + Br2(g) ΔHo = 30 kJ

A) Decrease the volume of the reaction vessel.
B) Add some NO.
C) Remove some NOBr.
D) Add Br2.
E) Increase the temperature.

1 Answer
Apr 23, 2018

E

Explanation:

It is a endothermic reaction by its positive enthalpy change of reaction, thus by Le Chatelier's Principle, a increase in temperature would shift the equilibrium position to the right.

https://www.saddlespace.org/whittakerm/science/cms_page/view/7795237

Theoretically, since the temperature increases, to balance the conditions and hence cause temperature to decrease the endothermic reaction's equilibrium is shifted to the right as there is a net energy take in as it proceeds from left to right.