From Kirchhoff's equation,which factor affects the heat of reaction?
- APressure
- BTemperature
- CVolume
- DMolecularity
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| $H-H$ bond energy | $431.37 \text{ kJ mol}^{-1}$ |
| $C=C$ bond energy | $606.10 \text{ kJ mol}^{-1}$ |
| $C-C$ bond energy | $336.49 \text{ kJ mol}^{-1}$ |
| $C-H$ bond energy | $410.50 \text{ kJ mol}^{-1}$ |
Enthalpy for the reaction $CH_2=CH_2 + H-H \to CH_3-CH_3$ will be .............. $\text{kJ mol}^{-1}$
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