When no. of moles of reactants and products are equal, then Kc has units:
Correct answer: D. no units.
- A. moles/dm3
- B. moles-2/dm+6
- C. moles2/dm-6
- D. no units.
Explanation
When the number of moles of reactants and products are equal, the equilibrium constant, Kc, has no units. This is because the concentration of each species in the equilibrium expression cancels out.
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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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