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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 statement is true about standard enthalpies of formation?
If the measured temperature rise in a neutralisation experiment is smaller than expected, which of these is a likely cause?
Which expression gives the overall enthalpy change using bond energies?
Which everyday process is an example of an exothermic change?
Why is a polystyrene cup usually preferred over a glass beaker when measuring temperature change in a lab reaction?
Which statement correctly defines an exothermic reaction?
Which statement about Hess’s law is correct?
Which formula is used to calculate the heat energy change in a simple calorimetry experiment using a liquid?
In bond-energy calculations for the reaction H2 + Cl2 ? 2HCl, if H—H = 436 kJ mol-1, Cl—Cl = 346 kJ mol-1 and H—Cl = 432 kJ mol-1, what is ?H (in kJ mol-1)?
A reaction gives ?H = -125 kJ mol-1. Which statement is correct?
In a simple calorimetry example, burning 2.00 g of fuel A releases 5000 J. What energy per gram does fuel A release?
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