Back to the full dot-point answer
EnglandChemistryQuick questions
Topic 7: Rates of reaction and energy changes
Quick questions on Bond energy calculations and energy change - Edexcel GCSE Chemistry
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
State whether bond breaking is exothermic or endothermic. [1 mark]
What is q2?Show answer
A reaction needs kJ/mol to break bonds and releases kJ/mol making bonds. Calculate the overall energy change and state the type of reaction. [2 marks]
What is q3?Show answer
Explain why a reaction is endothermic if the bond-energy calculation gives a positive value. [2 marks]
Have a question we have not covered?
This dot-point answer is short enough that we have not extracted many short questions yet. Read the full dot-point answer or ask Mo, our study assistant, in the chat for follow ups.