# Problem: Consider the reaction : CH4 + Cl2      →       CH3Cl + HCl Calculate the overall enthalpy change for the reaction (Hrxn) using the bond energy data given C-H 414 kJ H-Cl 431 kJ C-Cl 339 kJ Cl-Cl 243 kJ a. -92 kJ b. + 92 kJ c. -113 kJ d. 273 kJ e. 301 kJ

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Consider the reaction :

CH4 + Cl2      →       CH3Cl + HCl

Calculate the overall enthalpy change for the reaction (Hrxn) using the bond energy data given

C-H 414 kJ

H-Cl 431 kJ

C-Cl 339 kJ

Cl-Cl 243 kJ

a. -92 kJ

b. + 92 kJ

c. -113 kJ

d. 273 kJ

e. 301 kJ

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Bond Energy concept. If you need more Bond Energy practice, you can also practice Bond Energy practice problems.

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Based on our data, we think this problem is relevant for Professor Dixon's class at UCF.