Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant 'K' is____________________?
Correct answer: C. 105 atm-1
- A. 10 atm-1
- B. 10 (dimensionless)
- C. 105 atm-1
- D. 105 (dimensionless)
Explanation
For A + B ⇌ AB, Kp = pAB/(pA pB) = 1/[10⁻² × 10⁻³] = 10⁵ atm⁻¹. The dimensional form is expected here because the pressures are inserted directly in atmospheres rather than normalized by a standard pressure.
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