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Calculate the entropy change in surroundings when 1.00 mol of H2O(l) is formed under standard conditions. ∆f = –286 kJ mol–1

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It is given that 286 kJ mol–1 of heat is evolved on the formation of 1 mol of H2O(l). Thus, an equal amount of heat will be absorbed by the surroundings. qsurr = +286 kJ mol–1

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