Bond enthalpy

Last updated: 05/02/2020
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  1. Current
  2. Review
  3. Answered
  1. What is the definition of bond enthalpy?

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  2. What is the definition of average bond enthalpy?

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  3. What does the symbol ‘Σ’ mean?

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  4. What calculation is used to work out average bond enthalpy?

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  5. What is the process when bonds are broken?

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  6. What is the process when bonds are made?

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  7. What happens, in term of energy, when bonds are broken?

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  8. What happens, in term of energy, when bonds are made?

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  9. What type of enthalpy change is formed when an exothermic reaction takes place?

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  10. What type of enthalpy change is formed when an endothermic reaction takes place?

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  11. How can enthalpy change be predicted?

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  12. Why is it difficult to measure the enthalpy change for an incomplete combustion reaction?

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  13. Using the following enthalpy data, find the enthalpy of combustion of methane. /

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  14. Using the following enthalpy data, find the enthalpy of combustion of propane. /

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  15. Using the following enthalpy data, find the enthalpy of combustion of ethene. /

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  16. Using the following enthalpy data, find the enthalpy of combustion of propene. /

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  17. Using the following enthalpy data, find the enthalpy of combustion of butane. /

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  18. Using the following enthalpy data, find the enthalpy of combustion of butene. /

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