The reaction system CS₂(g) + 4H₂(g) CH₄(g) + 2H₂S(g)
Is at equilibrium. Which of the following statements describes the behavior of the system if the partial pressure of carbon disulfide is reduced?

Question

The reaction system CS₂(g) + 4H₂(g)

The reaction system CS<sub>2</sub>(g) + 4H<sub>2</sub>(g) CH<sub>4</sub>(g) + 2H<sub>2</sub>S(g) Is at equilibrium. Which of the following statements describes the behavior of the system if the partial pressure of carbon disulfide is reduced? A) As equilibrium is reestablished, the partial pressure of carbon disulfide increases. B) As equilibrium is reestablished, the partial pressure of hydrogen decreases. C) As equilibrium is reestablished, the partial pressure of methane, CH<sub>4</sub>, increases. D) As equilibrium is reestablished, the partial pressures of hydrogen and hydrogen sulfide decrease. E) As equilibrium is reestablished, all the partial pressures will increase.

CH₄(g) + 2H₂S(g)
Is at equilibrium. Which of the following statements describes the behavior of the system if the partial pressure of carbon disulfide is reduced?

Quizplus · Accepted Answer

According to Le Chatelier's Principle, if the partial pressure of one of the reactants is decreased, the equilibrium will shift in the direction that forms more of that substance. In this case, the reaction consumes CS₂(g), so if its partial pressure is reduced, the system will try to reestablish equilibrium by producing more of it. Therefore, the partial pressure of CS₂ will increase as equilibrium is reestablished.

The Reaction System CS2(g) + 4H2(g) CH4(g) + 2H2S(g)

The Reaction System CS₂(g) + 4H₂(g) CH₄(g) + 2H₂S(g)