MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryThermodynamics and ThermochemistryRelationship Between ΔH and ΔU
For the reaction, 2H O g 2H g O g → ∆H = 571.6 KJ fH of water is :
A.285.8 kJ
B.–285.8 kJ✓ Correct
C.1143.2 kJ
D.–1143.2 kJ
Explanation
Formation of water: 2 2 2 f H O H O H 571.6 H 285.8kJ 2 2 →
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