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#equilibrium partial pressure

2 public questions tagged with this topic.

Relationship Between Kp Kc and Factors Affecting Equilibrium - Le Chatelier

For 2A(g) + B(g) 3C(g) , Kp = 2 at 700 K. If PA = 1 atm , PB = 0.5 atm initially, what is PC at equilibrium?

Let PC = 3x , PA = 1 - 2x , PB = 0.5 - x . Kp = ((PC)³/(PA)² PB) = ((3x)³/(1 - 2x)² (0.5 - x)) = 2 , 27x³ = 2 (1 - 2x)² (0.5 - x) , x ≈ 0.2 , PC = 0.6 atm .

Ref: NCERT Class 11 Chemistry > Chapter 6: Equilibrium > Topic: Relationship Between Kp Kc and Factors Affecting Equilibrium - Le Chatelier

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Physical Equilibrium - Solid-Liquid Gas-Liquid and Henry's Law

For 2SO₂(g) + O₂(g) 2SO₃(g) , Kp = 100 at 800 K. If initial pressures are PSO₂ = 1 atm , PO₂ = 0.5 atm , what is PSO₃ at

Let PSO₃ = 2x , PSO₂ = 1 - 2x , PO₂ = 0.5 - x . Kp = ((PSO₃)²/PSO₂² PO₂) = ((2x)²/(1 - 2x)² (0.5 - x)) = 100 , (4x²/(1 - 2x)² (0.5 - x)) = 100 , (2x/1 - 2x) · (1/sqrt0.5 - x) = 10 , x ≈ 0.45 , PSO₃ = 0.9 atm .

Ref: NCERT Class 11 Chemistry > Chapter 6: Equilibrium > Topic: Physical Equilibrium - Solid-Liquid Gas-Liquid and Henry's Law

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