Equilibrium Question 726
Question: To an equilibrium mixture of $ 2SO_2(g)+O_2(g) \leftrightharpoons 2SO_2(g) $ some helium, an inert gas, is added at constant volume. The addition of helium causes the total pressure to double. Which of the following is true-
Options:
A) The concentration of the three gases is unchanged
B) The concentration of sulphur trioxide increases
C) The number of moles of sulphur trioxide increases
D) The concentration of sulphur dioxide increases
Show Answer
Answer:
Correct Answer: A
Solution:
As volume remains constant, the concentration of the three gases will remain unchanged on adding helium.
