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?

Question

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? (A) The concentration of all 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

Tardigrade Admin · Accepted Answer

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.

Q. To an equilibrium mixture of 2SO2(g)​+O2(g)​⇌2SO3(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?

The concentration of all three gases is unchanged

The concentration of sulphur trioxide increases

The number of moles of sulphur trioxide increases

The concentration of sulphur dioxide increases

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.

Q. To an equilibrium mixture of $2 S O_{2 (g)} + O_{2 (g)} ⇌ 2 S O_{3 (g)}$ 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?