Question

(\( \Delta H - \Delta U \)) for the formation of carbon monoxide (CO) from its elements at 298 K is (R = 8.314 J K\(^{-1}\) mol\(^{-1}\)):

• A. \( -1238.78 \, \text{J mol}^{-1} \)
• B. 1238.78 \( \, \text{J mol}^{-1} \)
• C. \( -2477.57 \, \text{J mol}^{-1} \)
• D. 2477.57 \( \, \text{J mol}^{-1} \)

Hint:

For reactions involving gases, \( \Delta H - \Delta U \) is calculated using \( \Delta nRT \), where \( \Delta n \) is the change in the number of moles of gas.

Answer 1

The Correct Option is A