MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical 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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