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The Energy Change Of Reactions (ht Only) (GCSE Chemistry)
The following is a GCSE Chemistry test covering 'The Energy Change Of Reactions (ht Only)' from the broader topic Energy Changes. The test is geared towards the AQA exam board style syllabus.Incorrect: 0
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Question 1
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Which statement correctly defines an exothermic reaction?
Which of the following changes will increase the temperature change measured in a dissolving experiment (greater |?T|)?
Which practical step will most improve accuracy when measuring small temperature changes in reaction calorimetry?
If the measured temperature rise in a neutralisation experiment is smaller than expected, which of these is a likely cause?
Which methodological change will reduce heat lost to the environment during a temperature-change experiment?
Which statement is true about standard enthalpies of formation?
Which statement correctly defines an endothermic reaction?
Which everyday process is an example of an endothermic change?
A reaction gives ?H = -125 kJ mol-1. Which statement is correct?
Which formula is used to calculate the heat energy change in a simple calorimetry experiment using a liquid?
Which is the best reason to use ?H in kJ mol-1 rather than kJ g-1 when reporting enthalpy change?
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