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What is the activation energy for a reaction? A The difference between the energy of the reactants and the products B The energy needed for a reaction to start C The energy of the products D The energy of the starting materials - OCR Gateway - GCSE Chemistry - Question 9 - 2018 - Paper 1
Question 9
What is the activation energy for a reaction? A The difference between the energy of the reactants and the products B The energy needed for a reaction to start C The... show full transcript
Worked Solution & Example Answer:What is the activation energy for a reaction? A The difference between the energy of the reactants and the products B The energy needed for a reaction to start C The energy of the products D The energy of the starting materials - OCR Gateway - GCSE Chemistry - Question 9 - 2018 - Paper 1
Step 1
B The energy needed for a reaction to start
Answer
The activation energy is defined as the minimum energy that must be provided for reactants to undergo a chemical reaction. It can be visualized as an energy barrier that must be overcome for the reaction to proceed. Therefore, the correct answer is:
B The energy needed for a reaction to start.