Question

A closed container is loaded with a sample of NOCI (S). Initially, there are no products present. An experiment is then done to measure the total pressure of gases as a funcion of time. Here is the result. 2NOCI (s) - 2NO(g) + Cl2 (8) w 2.8 2.6 2.4 2.2 Pressure (atm) NNN O 50 150 200 100 Time (min) Which of these conditions is consistent with the graph? (A) Equilibrium was achieved and then some solid NOCI was suddenly removed from the container (B) Equilibrium was achieved and then some NO was suddenly added to the container (C) Equilibrium was achieved and then temperature was suddenly increased. (D) Equilibrium was never achieved in this experiment (E) Equilibrium was achieved and then the container volume was suddenly increased. Further changes took place because of LeChatelier's principle. B) C) OD) OE) Submit D A AL

Answer 1

E) is the correct option

Reason :- On suddenly increasing volume after achieving the equilibrium pressure will decreases sharply because P inversly proportional to V . and equilibrium shifts in forward . Hence after some time again equilibrium will achieve with same value of total pressure