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23 November, 04:10

When solid (NH4) (NH2CO2) (NH4) (NH2CO2) is introduced into an evacuated flask at 25 ∘C∘C, the total pressure of gas at equilibrium is 0.116 atmatm. What is the value of KpKp at 25 ∘C∘C?

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  1. 23 November, 08:10
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    the value of Kp at 25°C is 2.37 * 10⁻⁴atm³

    Explanation:

    Given that Kp = 0.116atm

    NH₄ (NH₂CO₂) (s) ⇄ 2NH₃ (g) + CO₂ (g)

    2x atm xatm

    Pt = PNH₃ PCO₂

    0.116 = 2x + x

    0.116 = 3x

    x = 0.116/3

    x = 0.039 atm

    PNH₃ = 2x = 2 (0.039) = 0.078 atm

    PCO₂ = x = 0.039 atm

    Now,

    KP = PNH₃² * PCO₂

    = 0.078² * 0.039 atm³

    = 2.37 * 10⁻⁴ atm³

    the value of Kp at 25°C is 2.37 * 10⁻⁴atm³
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