Ombustion reactions involve reacting a substance with oxygen. when compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. using the enthalpies of combustion for c4h4 (-2341 kj/mol), c4h8 (-2755 kj/mol), and h2 (-286 kj/mol), calculate δh for the reaction.

Explanation:

The given reaction is as follows.

So, enthalpy change for the given reaction is calculated as follows.

where, n = number of moles.

Now, putting the given values into the above equation and calculate the change in enthalpy as follows.

            =

           = 158 kJ

Thus, we can conclude that enthalpy of the combustion is 158 kJ.

explanation:

0.07 g/cm³

1.37 g/cm³