Equilibrium questions
1777 published questions with worked solutions.
- The reaction A+2B⇌2C+D was studied using an initial concentration of B which was 1.5 times that of A. But the equilibrium...
- If the initial concentrations of N _2, H _2 and NH _3 are 1, 2 and 3 mol L ^ -1 respectively for the reaction N _2 + 3 H _2 2 NH...
- One mole of nitrogen is mixed with three moles of hydrogen in a closed 3 litre vessel. 20% of nitrogen is converted into NH₃....
- For H₂+I₂⇌2HI, at equilibrium some I₂ is added. What happens to the equilibrium?
- The equilibrium constant K for the reaction 2HI(g)⇌H₂(g)+I₂(g) at room temperature 300 K is 2.85 and at 698 K 1.84×10⁻². Hence...
- Indicate the correct answer for the reaction, NH₄Cl+H₂O⇌NH₄OH+HCl:
- Equilibrium constants K₁ and K₂ for the following equilibria are related as: NO(g)+½O₂(g)⇌NO₂(g); K₁. 2NO₂(g)⇌2NO(g)+O₂(g); K₂.
- Le-Chatelier's principle is not applicable to:
- The graph relates ln Keq vs 1/T for a reaction (graph shows a positive slope, i.e. ln Keq rises as 1/T increases). The reaction...
- In a system: A(s)⇌2B(g)+3C(g). If the concentration of C at equilibrium is increased by a factor 2, it will cause the equilibrium...
- Which favours the backward reaction in a chemical equilibrium?
- Given that the equilibrium constant for the reaction 2SO₂(g)+O₂(g)⇌2SO₃(g) has a value of 278 at a particular temperature. What...
- The degree of dissociation of PCl₅(α) obeying the equilibrium, PCl₅(g)⇌PCl₃(g)+Cl₂(g), is approximately related to the pressure...
- On addition of an inert gas at constant volume to the reaction, N₂+3H₂⇌2NH₃ at equilibrium:
- For the reaction, C(s)+CO₂(g)⇌2CO(g), the partial pressure of CO₂ and CO are 4 and 8 atm respectively, Kp for the reaction is:
- The equilibrium constant (Kc) for the reaction N₂(g)+O₂(g)⇌2NO(g) at room temperature is 4×10⁻⁴. The value of Kc for...
- If pressure is applied to the following equilibrium, Liquid ⇌ Vapour, the boiling point of the liquid:
- One mole of ethyl alcohol was treated with one mole of acetic acid at 25°C. 2/3 of the acid changes into ester at equilibrium....
- Just before a reversible reaction attains equilibrium it is found that:
- If K₁ and K₂ are equilibrium constants for reactions (I) and (II) respectively, N₂+O₂⇌2NO...(I); ½N₂+½O₂⇌NO...(II). Then:
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