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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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Which expression gives the overall enthalpy change using bond energies?
Which of the following best explains why increasing temperature usually increases reaction rate?
When an acid neutralises an alkali in solution, which is true about the energy change?
Which everyday process is an example of an endothermic change?
Which is the best reason to use ?H in kJ mol-1 rather than kJ g-1 when reporting enthalpy change?
If the measured temperature rise in a neutralisation experiment is smaller than expected, which of these is a likely cause?
In a calorimetry experiment you heat 100 g of water by 5.0 °C. Using c = 4.18 J g-1 °C-1, what is the heat absorbed by the water (in J)?
Which practical step will most improve accuracy when measuring small temperature changes in reaction calorimetry?
How does a catalyst affect a reaction profile?
Which of these best explains why bond breaking is endothermic and bond forming is exothermic?
Which unit is most appropriate for standard enthalpy changes reported in data tables?
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