For the reaction N 2 (g) + 3H 2 (g) ⇌ 2NH 3 (g) at equilibrium in a closed rigid vessel at constant temperature, which of the following statement(s) is/are correct?

Question

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At equilibrium the two rates are equal and the concentrations stay constant, so (a) is correct A catalyst speeds up both directions equally and leaves K_c unchanged, so (b) is wrong

Ar added at constant volume leaves every partial pressure unchanged, so there is no shift and (c) is correct

Ar added at constant total pressure increases the volume, which lowers the partial pressures

The equilibrium then moves towards more gas moles, that is towards N₂ and H₂ and away from NH₃, so (d) is wrong

The correct statements are (a) and (c).

Chemistry - Chemical Equilibrium Question with Solution | TestHub

Options:(select one or more)

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