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Question 18

From Chemistry HL Paper 1A (May 2025, TZ2)

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  1. What is the correct interpretation of this energy profile?
A graph showing potential energy versus reaction coordinate, with 'Reactants' at a lower energy level than 'Products', and an activation energy barrier between them.
A graph showing potential energy versus reaction coordinate, with 'Reactants' at a lower energy level than 'Products', and an activation energy barrier between them.
A table with two columns: 'Relative stability' and 'Temperature of surroundings', and four rows describing different combinations of reactant/product stability and temperature changes.
A table with two columns: 'Relative stability' and 'Temperature of surroundings', and four rows describing different combinations of reactant/product stability and temperature changes.