Chemistry · May / June 2026 · Paper 12 · Question 12
5070Exothermic and endothermic reactions
Which row about endothermic reactions is correct?
- Aoverall energy change: energy released when bonds are made is greater than energy used to break bonds; ΔH: negative
- Boverall energy change: energy released when bonds are made is less than energy used to break bonds; ΔH: negative
- Coverall energy change: energy released when bonds are made is greater than energy used to break bonds; ΔH: positive
- Doverall energy change: energy released when bonds are made is less than energy used to break bonds; ΔH: positive
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Correct answer: D. overall energy change: energy released when bonds are made is less than energy used to break bonds; ΔH: positive
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