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Consider the reaction A\(_{(s)}\) + 2B\(_{(g)}\) → 2C\(_{(aq)}\) + ...

Consider the reaction
A\(_{(s)}\) + 2B\(_{(g)}\) → 2C\(_{(aq)}\) + D\(_{(g)}\)
What will be the effect of a decrease in pressure on the reaction?
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  • A The equilibrium will shift
  • B Rate of forward reaction will increase
  • C Rate of backward reaction will increase
  • D Rates of forward and backward reaction are not affected
Correct Answer: Option B
Explanation:
Given: The equation below
A\(_{(s)}\) + 2B\(_{(g)}\) → 2C\(_{(aq)}\) + D\(_{(g)}\)
Since we have a higher number of moles of gaseous species on the LHS, i.e 2, a decrease in pressure will favor the forward reaction.

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