Calculate the entropy change in surroundings

CBSE Class 11 CBSE Class 11 Chemistry
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1

Calculate the entropy change in surroundings when 1.0 mole of $H _{ 2 }O$(l) is formed under standard conditions. ∆fH° = -286 kJ/mol

2

Energy released in the above reaction, is absorbed by the surroundings.

∆S ={ q }_{ surr } / T
= +286 kJ/mol / 298K
= 0.9597 kJ /K/mol
= 959.7 Jk/Mol