Question

what is the enthalpy change of reaction when ethene reacts with benzene and produces phenylethene?

Answer 1

@Hoslos

Answer 2

We can do it as standard enthalpy change of formation, which is the energy absorbed to by the reactants to form 1 mole of the product.

Answer 3

ok so thats what i thought my data booklet didnt give me a standard molar enthalpy of formation for phenyl benzene.....

Answer 4

so how am i suppposed to get it? thats all the info it gave me

Answer 5

phenyl ethene*

Answer 6

So it is data booklet?
Find the total number of bond energies for C=C (benzene) , for C-H bonds , C=C bonds.
Then use the formula:
Total bond energy of products - total bond energy of reactants.

Answer 7

You can find this data online.

Answer 8

Their standard values (which is generally at 25 degree C at 1 bar pressure).