Question

C\(_p\) of a gas is 30 J mol\(^{-1}\) K\(^{-1}\). If the gas is heated from 298 K to 348 K at 1 atm, the change in internal energy of 1 mole of gas at constant volume is approximately (R = 8.3 J K\(^{-1}\) mol\(^{-1}\))

• A. 0.7 kJ mol\(^{-1}\)
• B. 10.6 kJ mol\(^{-1}\)
• C. 1.1 kJ mol\(^{-1}\)
• D. 8.3 kJ mol\(^{-1}\)

Hint:

Always convert \(C_p\) to \(C_v\) using \(C_p - C_v = R\) before calculating internal energy change.

Answer 1

The Correct Option is C