Which of the following reaction has greater Kp than Kc?
Correct answer: C. 2NOCl <--> 2NO + Cl2
- A. 2NO + Cl2 <--> 2NOCl
- B. 2SO2 + O2 <--> 2SO3
- C. 2NOCl <--> 2NO + Cl2
- D. N2 + 3H2 <--> 2NH3
Explanation
When the volume of products is greater than the volume of reactants, then Kp> Kc. From the options above, only Option C has more volume of gases at the product side as compared to the reactant side. We concluded this from the mole ratio of the equation which is 3 on the product side against 2 on the reactant side.
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About Chemical Equilibrium
Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
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