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NEETChemistryThermodynamics (C)

Enthalpies of formation of CO(g), CO 2 (g), N 2 O(g) and N 2 O 4 (g) are –110, – 393, 81 and 9.7 kJ mol –1 respectively. Find the value of ∆ r H for the reaction: N 2 O 4 (g) + 3CO(g) → N 2 O(g) + 3CO 2 (g)

Options

  1. A–777.7 kJ mol -1
  2. B–869.4 kJ mol -1
  3. C–648.3 kJ mol -1
  4. D–579.2 kJ mol -1

Correct answer

A. –777.7 kJ mol -1

Step-by-step solution

Correct Option is : (A) –777.7 kJ mol -1

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