Question
Calculate $\Delta_\text{r}\text{H}^\circ$ for the reaction,
$\text{H}-\text{C}=\text{C}-\text{H}+30=0\overrightarrow{\ \ \ \ \ \ \ }\\ \ \ \ \ \ \ \ \ \ |\ \ \ \ \ \ \ |\\ \ \ \ \ \ \ \ \ \text{H} \ \ \ \ \ \text{H}\\20=\text{C}=0+2\text{H}-0-\text{H}$
The average bond enthalpies of various bonds are as follows.
$\text{H}-\text{C}=\text{C}-\text{H}+30=0\overrightarrow{\ \ \ \ \ \ \ }\\ \ \ \ \ \ \ \ \ \ |\ \ \ \ \ \ \ |\\ \ \ \ \ \ \ \ \ \text{H} \ \ \ \ \ \text{H}\\20=\text{C}=0+2\text{H}-0-\text{H}$
The average bond enthalpies of various bonds are as follows.
|
Bond
|
Bond enthalpy ($\mathrm{kJ} \mathrm{~mol}^{-1}$)
|
|
C-H
|
414
|
|
O=O
|
499
|
|
C=O
|
724
|
|
O-H
|
460
|
|
C=C
|
619
|
