Answer to Question #280226 in General Chemistry for Metro

Question

Consider this reaction: 2NOCI(g)⇌NO2(G)+CI2(g) ∆ H=77.16 KJ/mol

Predict the direction of shifting (to the left/right) if the following stresses are applied

1) [NOCI] is increased

2) Temperature is decreased

3)pressure is increased

4) [CI2] is increased

Answer 1

(1) If temperature is decreased to 273K, then the concentration of N2

​

will decreases, according to LeChatelier principle, the reaction is favoured to backward direction.

(2) There is no change in the concentration of N2

​ when pressure is reduced since for the reversible reaction which proceed with no change in volume, pressure has no effect on the position of equilibrium.