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Collision Theory And Activation Energy (GCSE Chemistry)
The following is a GCSE Chemistry test covering 'Collision Theory And Activation Energy' from the broader topic The Rate And Extent Of Chemical Change. The test is geared towards the AQA exam board style syllabus.Incorrect: 0
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Which factor changes the proportion of collisions having energy equal to or greater than the activation energy most directly?
A student measures rate as volume of gas produced per second. Which change to the apparatus gives a more accurate measurement of small volumes collected?
What effect does increasing temperature have on the Maxwell–Boltzmann distribution of molecular energies?
If two reactions have the same activation energy but different collision frequencies, what will be true?
How does increasing pressure affect the rate of reaction for gases when other conditions are constant?
Which factor does NOT affect the collision frequency for gas-phase reactants in the same container?
Which experimental change would most directly decrease activation energy for a reaction?
Which graph feature on a reaction profile represents the activation energy?
The Maxwell–Boltzmann distribution curve at a higher temperature compared with a lower temperature is characterized by:
If a reaction’s rate doubles when temperature is increased by 10 °C, this observation is best interpreted as:
Which of these changes would increase the fraction of molecules with energy = activation energy?
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