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JEE Main2006ChemistryThermodynamics (C)Actual

( H - U ) for the formation of carbon monoxide (CO) from its elements at 298 ~K is ( R =8.314 ~J ~K ⁻¹ ~mol ⁻¹ )

Options

  1. A-1238.78 ~J ~mol ⁻¹
  2. B1238.78 ~J ~mol ⁻¹
  3. C-2477.57 ~J ~mol ⁻¹
  4. D2477.57 ~J ~mol ⁻¹

Correct answer

A. -1238.78 ~J ~mol ⁻¹

Step-by-step solution

aligned H - U & = n _g RT & =- 1 2 8.314 298 & =-1238.78 aligned

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