Equilibrium questions
1777 published questions with worked solutions.
- For the reaction H₂ + I₂ ⇌ 2HI:
- The equilibrium constant for the reaction P₄(s) + 5O₂(g) ⇌ P₄O₁₀(s) is:
- For the reaction A+B⇌C+D, the initial concentration of A and B are equal, but the equilibrium concentration of C is twice that of...
- The value of equilibrium constant of the reaction HI(g)⇌½H₂(g)+½I₂(g) is 8.0. The equilibrium constant of the reaction...
- An increase in the temperature of an equilibrium system:
- For which reaction is Kp = Kc?
- Two systems PCl₅(g)⇌PCl₃(g)+Cl₂(g) and COCl₂(g)⇌CO(g)+Cl₂(g) are simultaneously in equilibrium in a vessel at constant volume. If...
- Kc for A+B⇌3C is 20 at 25°C. If a 2 litre vessel contains 1, 2 and 4 mole of A, B and C respectively, the reaction at 25°C shall:
- For the reactions A⇌B; Kc=2. B⇌C; Kc=4. C⇌D; Kc=6. Kc for the reaction A⇌D is:
- At temperature T, a compound AB₂(g) dissociates according to the reaction 2AB₂(g) ⇌ 2AB(g) + B₂(g) with a degree of dissociation...
- The equilibrium constant for the reaction N₂(g)+O₂(g)⇌2NO(g) is 4×10⁻⁴ at 2000 K. In presence of a catalyst the equilibrium is...
- Which one is correct representation for 2SO₃ ⇌ 2SO₂ + O₂?
- If K₁ and K₂ are the respective equilibrium constants for the two reactions: XeF₆(g)+H₂O(g)⇌XeOF₄(g)+2HF(g);...
- Amount of PCl₅ (in mole) needed to be added to a one litre vessel at 250°C in order to obtain a concentration of 0.1 mole of Cl₂...
- In a lime kiln, the reversible reaction, CaCO₃(s) ⇌ CaO(s)+CO₂(g) proceeds to completion because:
- A chemical reaction A⇌B is said to be at equilibrium when:
- A definite amount of solid NH₄HS is placed in a flask already containing NH₃ gas at a certain temperature and 0.50 atm pressure....
- In the reaction PCl₅ ⇌ PCl₃+Cl₂, the amounts of PCl₅, PCl₃ and Cl₂ at equilibrium are 2 mole each and the total pressure is 3...
- N₂O₄ is dissociated to 33% and 40% at total pressures P₁ and P₂ atm respectively. Then the ratio P₁/P₂ is:
- Given the reaction between two gases represented by A₂ and B₂ to give the compound AB(g): A₂(g)+B₂(g)⇌2AB(g). At equilibrium, the...
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