00:01
To use bond anthalpes, to estimate the bond energy associated with c double bond o in co, cl2, we need to rewrite the chemical reaction using lewis structures.
00:20
Carbon has a lewis structure of c, triple bond o, and that then reacts with chlorine gas, which is c, l2.
00:35
Single bond cl in order to produce our single product of c double bond o and each chlorine is bonded once as a single bond to the carbon so if the enthalpy change for the following reaction is negative 108 kilojoules then that can be said equal to the energy required to break a c triple bond o bond, which is provided in the table i have, 1 ,072 kilojoules, and then plus the energy required to break a clcl bond, which is to to 39 kilojoules in the table that i have.
01:45
And then we'll subtract off the bond energy of c, cl times two, because there are two of them.
01:56
And i have that at 3 39 kilojoules, and then plus the c double bond o bond energy...