logo

Ask Questions, Get Answers

X
 

The standard enthalpy of formation $\;(\bigtriangleup_{f}H_{298}^{o})\;$ for methane, $\;CH_{4}\;$ is $\;-74.9\;kJmol_{-1}\;$.In order to calculate the average energy given out in the formation of a C - H bond from this it is necessary to know which one of the following ?

(a) The dissociation energy of the hydrogen molecule,$\;H_{2}\;$\[\](b) The first four ionisation energies of carbon\[\](c) The dissociation energy of $\;H_{2}\;$ and enthalpy of sublimation of carbon (graphite)\[\](d) The first four ionisation energies of carbon and electron affinity of hydrogen

Please log in or register to answer this question.

Related questions

Download clay6 mobile appDownload clay6 mobile app
...
X