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Edexcel A-Level Chemistry AS 6.2 That By Convention Exothermic Reactions Have a Negative Enthalpy Change and Endothermic Reactions Have a Positive Enthalpy Questions

Identify whether the reacting system releases or absorbs heat, assign the sign of enthalpy change and connect the energy balance to the observed temperature or process demand.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
AS

Exam points

  • Link negative enthalpy change to heat released and positive change to heat absorbed.
  • Use temperature or process-energy evidence to classify an exothermic or endothermic reaction.

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