Question

The reaction, $S{O}_2\left(g\right)+C{l}_2\left(g\right)\rightleftharpoons S{O}_{2}C{l}_2\left(l\right)$ is exothermic and reversible. To the above reaction, at equilibrium, a certain quantity of extra $S{O}_2$ is introduced keeping the volume constant. Which of the following are true?

• A. The pressure inside the container increases.
• B. The temperature will increase.
• C. The temperature will decreases.
• D. The temperature will remain same.

Answer 1

Answer: (A), (B)

The correct options are
A The pressure inside the container increases.
B The temperature will increase.

Since extra sulphur dioxide is added, the pressure will increase. The equilibrium will shift to right. Since the reaction is exothermic, more heat will be liberated. Hence, temperature will increase.