Chemistry A H032: Enthalpy changes Topical Past Paper Questions
OCR AS Chemistry A (H032) past-paper questions on Enthalpy changes, free. This topic is frequently examined across 5 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
Enthalpy changes of reaction can be determined by experiment. (a) What is meant by the term enthalpy change of reaction? (b)* A student carries out an experiment to determine the enthalpy change for the reaction between zinc and copper(II) nitrate solution. Zn(s) + Cu(NO_{3})_{2}…
This question is about the enthalpy change of combustion of alcohols. (a) Explain the term enthalpy change of combustion. [2] (b) A student carries out an experiment to determine the enthalpy change of combustion, $ \Delta_{c}H $, of butan-1-ol, $ CH_{3}CH_{2}CH_{2}CH_{2}OH $. Th…
A student carries out an investigation to find the enthalpy change for the decomposition of magnesium carbonate, $\Delta H_{1}$ (Reaction 1). Reaction 1 $$ \mathrm{MgCO_{3}(s)}\rightarrow\mathrm{MgO(s)}+\mathrm{CO_{2}(g)} $$ $$ \Delta H_{1} $$ This enthalpy change cannot be found…
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