6. Thermodynamics and Kinetics
Enthalpy
6. Thermodynamics and Kinetics Enthalpy
11PRACTICE PROBLEM
Calculate the value of the standard enthalpy change (ΔH°) for each step in the chlorination of ethane. Determine the overall value of ΔH°.
Use the following BDE values:
CH3CH2—Cl bond = 355 kJ/mol
CH3CH2—H bond = 423 kJ/mol
Cl—Cl bond = 240 kJ/mol
H—Cl bond = 432 kJ/mol
Calculate the value of the standard enthalpy change (ΔH°) for each step in the chlorination of ethane. Determine the overall value of ΔH°.
Use the following BDE values:
CH3CH2—Cl bond = 355 kJ/mol
CH3CH2—H bond = 423 kJ/mol
Cl—Cl bond = 240 kJ/mol
H—Cl bond = 432 kJ/mol