JAMB Chemistry · Solutions, the environment and chemical change
Chemical equilibria: JAMB Chemistry Past Questions and Answers
What the JAMB syllabus covers in Chemical equilibria
Our summary: Reversible reactions, dynamic equilibrium, Le Chatelier's principle and the equilibrium constant.
- Reversible reactions and factors governing the equilibrium position
- Dynamic equilibrium
- Le Chatelier's principle and its industrial applications, equilibrium constant (Simple examples to include action of steam on iron and N₂O₄ ⇌ 2NO₂. No calculation will be required.)
Objectives
- identify the factors that affect the position of equilibrium of a chemical reaction;
- predict the effects of each factor on the position of equilibrium;
- specify the industrial processes where Le Chatelier's principle is required; and
- determine the effects of these factors on equilibrium constant.
Syllabus content © The Joint Admissions and Matriculation Board (UTME).
JAMB Chemistry questions on Chemical equilibria
- JAMB 2025If there is no change in volume in a gaseous reaction, the pressure will
- JAMB 2025NH 3 ( g ) + HCl ( g ) → NH 4 Cl (g) In the reaction above, increase in pressure will
- JAMB 2024CuO s + H 2 ( g ) ⇌ Cu s + H 2 O( g ) In the equation above, the effect of increased pressure on the equilibrium position is that
- JAMB 2023What happens to the value of the equilibrium constant (Kc) for a reaction if the reaction is reversed?
- JAMB 2023What happens to the position of equilibrium, if a reversible exothermic reaction is subjected to a decrease in temperature?
- JAMB 2019Consider the reaction A (s) + 2B (g) → 2C (aq) + D (g) What will be the effect of a decrease in pressure on the reaction?
- JAMB 2019For the general equation of the nature xP + yQ ⇌ mR + nS, the expression for the equilibrium constant is
- JAMB 2019In the reaction: M + N → P ΔH = +Q kJ Which of the following would increase the concentration of the product?
- JAMB 2019Consider the reaction: A + 2B (g) 2C + D (g) ( H = +ve) What will be the effect of decrease in temperature on the reaction?
- JAMB 20183H 2(g) + N 2(g) ⇔ 2NH 3(g) ; H= -ve In the reaction above, lowering of temperature will
- JAMB 2018mE + nF ----- pG + qH In the equation shown, the equilibrium constant is given by?
- JAMB 20182SO 2 (g) + O 2 (g) ↔ 2SO 3 (g) ΔH = -395.7kJmol ^ -1 In the equation, an increase in temperature will shift the equilibrium position to the
- JAMB 2017For a general equation of the nature xP + yQ → mR + nS, the expression for the equilibrium constant is
- JAMB 2016N2O4(aq) 2NO2(g) H = +ve In the reaction above, an increase in temperature will
- JAMB 2015PCL5(g)= PCL3(g) + Cl2(g) In the reaction above, a decrease in pressure will
- JAMB 2015N2O4(g)→ 2NO2(g) In the endothermic reaction above, more products formed will be favored by
- JAMB 2014In an equilibrium reaction, which of the following conditions indicates that maximum yield of the product will be obtained?
- JAMB 20132SO2(g) + O2(g) 2SO3(g) H = -395.7kJmol^ -1 In the reaction above, the concentration of 2SO3(g) can be in creased by
- JAMB 2011N2O4(g) ↔ 2NO2(g) ΔH = +ve In the reaction above, an increase in temperature will
Years with Chemical equilibria questions in DeeepSolve's question bank
From the past questions DeeepSolve holds, not a count of everything the exam body has set.
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