BRAINCAKEExam-Style Questions - 5
Question. Hydrogen and iodine react reversibly:
H2(g) + I2(g) ⇌ 2HI(g)
The table gives Kc at two temperatures.
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Key terms in this lesson
- equilibrium constant
- A value, Kc, expressing the ratio of product to reactant concentrations at equilibrium for a reaction at a given temperature.
- exothermic
- Describes a reaction that transfers energy to the surroundings, so the temperature of the surroundings increases.
- endothermic
- Describes a reaction that takes in energy from the surroundings, so the temperature of the surroundings decreases.
More in Reversible Reactions and Dynamic Equilibrium
- Homogeneous Systems
- Heterogeneous Systems
- Industrial Processes
- The Contact Process
- Exam-Style Questions - 1
- Exam-Style Questions - 2
- Exam-Style Questions - 3
- Exam-Style Questions - 4
All 18 lessons in Reversible Reactions and Dynamic Equilibrium · All Edexcel AS-level Chemistry topics