Edexcel A LevelWCH01Frequently examined

Chemistry WCH01: Energetics Topical Past Paper Questions

Edexcel A Level Chemistry (WCH01) past-paper questions on Energetics, free. This topic is frequently examined across 8 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.

Sample questions

Summer (May/Jun) 2019· 5(IAL)

Benzene has a delocalised electronic structure that makes it 150kJ mol $ ^{-1} $ more stable than the structure with alternate single and double bonds, which would be called cyclohexa-1,3,5-triene. The hydrogenation of benzene to cyclohexane has an enthalpy change $ \Delta H_{\te…

Summer (May/Jun) 2018· 5(IAL)

The enthalpy change of hydrogenation of but-1-ene is $ -126.9 \, kJ \, mol^{-1} $ and the enthalpy change of hydrogenation of buta-1,3-diene is $ -236.4 \, kJ \, mol^{-1} $. The delocalisation structure of buta-1,3-diene is more stable than the molecule with two isolated C=C bond…

Summer (May/Jun) 2017· 2(IAL)

This question is about the Maxwell-Boltzmann energy distribution. The diagram for an increase in temperature from $ T_{1} $ to $ T_{2} $

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