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Tutor HuntTest QuestionsChemistry QuestionsYear 10 Chemistry Questions

 

Reaction Profiles (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Reaction Profiles' from the broader topic Energy Changes. The test is geared towards the AQA exam board style syllabus.
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Question 1
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Below a typical questions that will be covered in this test. You final score will be logged on your account

Which change to a reaction will be represented on a reaction profile by lowering the peak but keeping reactant and product levels unchanged?
On a reaction profile graph, which vertical distance corresponds to the overall energy change (?H) for the reaction?
Which description of a reversible reaction at dynamic equilibrium is correct?
Which is the best description of the “reaction coordinate” on a reaction profile?
Which effect does increasing temperature have on a reaction, as shown on a reaction-coordinate level concept?
A student sketches a reaction profile and labels an arrow pointing down from reactants level to products level. The arrow should be labelled
When comparing two reaction profiles, the one with the lower activation energy will usually have
Which of the following is true when a catalyst is used in a reaction?
Which calculation using bond energies gives the energy absorbed by breaking bonds?
If two reaction profiles show the same activation energy but different overall energy changes, they differ in
Which of the following statements about the peak(s) on a reaction profile is correct?