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NEETChemistryThermodynamics (C)

The enthalpy of reaction for the reaction : 2H 2 (g) + O 2 (g) → 2H 2 O(l) is ∆ r H ⊖ = – 572 kJ mol –1 . What will be standard enthalpy of formation of H 2 O(l)?

Options

  1. A∆ f H ⊖ (H 2 O(l)) = +286 kJ / mol
  2. B∆ f H ⊖ (H 2 O(l)) = -214 kJ / mol
  3. C∆ f H ⊖ (H 2 O(l)) = -365 kJ / mol
  4. D∆ f H ⊖ (H 2 O(l)) = -286 kJ / mol

Correct answer

D. ∆ f H ⊖ (H 2 O(l)) = -286 kJ / mol

Step-by-step solution

Correct Option is : (D) ∆ f H ⊖ (H 2 O(l)) = -286 kJ / mol

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