2H2(g) + O2(g) ⇌ 2H2O(l)i. Identify the direction in which the given equation shows endothermic reaction. (1 Mark)______________________________________________________________________________________________________________________________________________________________________ii. Give ONE reason to justify your answer to part i. (1 Mark)
Question
2H2(g) + O2(g) ⇌ 2H2O(l)i. Identify the direction in which the given equation shows endothermic reaction. (1 Mark)______________________________________________________________________________________________________________________________________________________________________ii. Give ONE reason to justify your answer to part i. (1 Mark)
Solution
i. The direction in which the given equation shows an endothermic reaction is from right to left: 2H2O(l) ⇌ 2H2(g) + O2(g).
ii. The reason to justify this is that an endothermic reaction is one that absorbs heat from its surroundings. In this case, the breaking down of water (H2O) into its components hydrogen (H2) and oxygen (O2) requires energy or heat, hence it is endothermic.
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