BRAINCAKEExam-Style Questions - 2
Question. Write the expression for Kc, and give its units, for each equilibrium.
(a) 2SO2(g) + O2(g) ⇌ 2SO3(g) (2)
(b) PCl5(g) ⇌ PCl3(g) + Cl2(g) (2)
(c) 2HI(g) ⇌ H2(g) + I2(g) (2)
Model answer.
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Key terms in this lesson
- equilibrium constant
- A value, Kc, expressing the ratio of product to reactant concentrations at equilibrium for a reaction at a given temperature.
More in Reversible Reactions and Dynamic Equilibrium
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- The Contact Process
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All 18 lessons in Reversible Reactions and Dynamic Equilibrium · All Edexcel AS-level Chemistry topics