In which of the following reaction Kc has moles-2 dm+6 unit?
Correct answer: A. Option A
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation
The units for K are (concentration) . For this reaction, Δn = (products) - (reactants) = 2 - (1+3) = -2. Therefore, the units are (mol·dm⁻³), which is mol⁻²·dm⁶.
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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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