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1. |
ΔH is positive for which of the following processes?(a) Oxidation of nitrogen(b) Melting of ice and evaporation of water(c) Oxidation of gold(d) Burning of chlorine |
Answer» Correct answer is (b) Melting of ice and evaporation of water Explanation: Enthalpy change (ΔH) is positive for endothermic reactions, the reactions which involves absorption of energy. Melting of ice and evaporation of water involves absorption of energy. |
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