Ap Eapcet
Thermodynamics
AP EAPCET 2022 - 5th July Morning Shift
MCQ+1 / -02022
Use the data from table to estimate the enthalpy of formation of \(\mathrm{CH}_3 \mathrm{CHO}\).
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| Bond enthalpy | Bond | Enthalpy of formation |
|---|---|---|
| \(\mathrm{400~kJ~mol^{-1}}\) | \(\mathrm{C-H}\) | \(\mathrm{C}(\mathrm{g}) 700 \mathrm{~kJ} \mathrm{~mol}^{-1}\) |
| \(\mathrm{350~kJ~mol^{-1}}\) | \(\mathrm{C-C}\) | \(\mathrm{H}(\mathrm{g}) 200 \mathrm{~kJ} \mathrm{~mol}^{-1}\) |
| \(\mathrm{700~kJ~mol^{-1}}\) | \(\mathrm{C=O}\) | \(\mathrm{O}(\mathrm{g}) 250 \mathrm{~kJ} \mathrm{~mol}^{-1}\) |