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NEETChemistryThermodynamics (C)

Comment on the thermodynamic stability of NO(g), given: 1/2 N 2 (g) + 1/2 O 2 (g) → NO(g) ; ∆ r H ⊖ = 90 kJ mol –1 NO(g) + 1/2 O 2 (g) → NO 2 (g) ; ∆ r H ⊖ = –74 kJ mol –1

Options

  1. ANO(g) is unstable, but it does not get converted to NO 2 (g)
  2. BNO(g) is stable, so it gets converted to NO 2 (g)
  3. CNO(g) is unstable, so it gets converted to NO 2 (g)
  4. DNO(g) is stable, but it does not get converted to NO 2 (g)

Correct answer

C. NO(g) is unstable, so it gets converted to NO 2 (g)

Step-by-step solution

Correct Option is : (C) NO(g) is unstable, so it gets converted to NO 2 (g)

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