1. Tardigrade
  2. Question
  3. Chemistry
  4. To an equilibrium mixture of 2 SO 2(g)+ O 2(g) leftharpoons 2 SO 3(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?

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Q. To an equilibrium mixture of $2 SO _{2(g)}+ O _{2(g)} \rightleftharpoons 2 SO _{3(g)}$ 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?

J & K CETJ & K CET 2010Equilibrium

Solution:

Since, the inert gas is added at constant volume, ie, the volume is not allowed to increase, the concentrations of all the three gases remain unchanged.