a Define average bond enthalpy b Use the average bond enthalpies that follow to calculate a value for the enthalpy change for the reaction H 2 I 2 2HI E(H H) 436 kJ mol 1 E(I I) 151 kJ mol 1 E(H I) 299 kJ mol 1 c Represent these changes on an enthalpy profile diagram ...

a The change of energy required to break a bond for gaseous molecules during ...

a. Define average bond enthalpy. b. Use the average bond enthalpies that follow to calculate a value

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a. Define average bond enthalpy.

b. Use the average bond enthalpies that follow to calculate a value for the enthalpy change for the reaction:
H₂ + I₂ → 2HI
E(H — H) = +436 kJ mol^–1
E(I — I) = +151 kJ mol^–1
E(H — I) = +299 kJ mol^–1

c. Represent these changes on an enthalpy profile diagram.

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Cambridge International AS And A Level Chemistry Coursebook

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Authors: Lawrie Ryan, Roger Norris

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a. Define average bond enthalpy. b. Use the average bond enthalpies that follow to calculate a value

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Cambridge International AS And A Level Chemistry Coursebook

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