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Energetics

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Question 7

Which equation represents the process that occurs when the standard enthalpy of atomisation of bromine is measured?

A

Br2(l)→2Br(g)\text{Br}_2(\text{l}) \rightarrow 2\text{Br}(\text{g})Br2​(l)→2Br(g)

B

12Br2(l)→Br(g)\frac{1}{2} \text{Br}_2(\text{l}) \rightarrow \text{Br}(\text{g})21​Br2​(l)→Br(g)

C

12Br2(g)→Br(g)\frac{1}{2} \text{Br}_2(\text{g}) \rightarrow \text{Br}(\text{g})21​Br2​(g)→Br(g)

D

Br2(g)→2Br(g)\text{Br}_2(\text{g}) \rightarrow 2\text{Br}(\text{g})Br2​(g)→2Br(g)

Markscheme

Energetics Questions

  1. A Level
  2. /Chemistry
  3. /Energetics

34 exam-style questions on AQA A Level Chemistry Energetics, covering Enthalpy change, Calorimetry, Applications of Hess's law, and Bond enthalpies. Each one has a worked solution and a mark scheme showing where the marks go.

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