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Why do marble chips react faster with warm hydrochloric acid than with cold hydrochloric acid? A The warm hydrochloric acid acts as a catalyst - OCR Gateway - GCSE Chemistry - Question 3 - 2023 - Paper 2
Question 3
Why do marble chips react faster with warm hydrochloric acid than with cold hydrochloric acid? A The warm hydrochloric acid acts as a catalyst. B The warm hydrochl... show full transcript
Worked Solution & Example Answer:Why do marble chips react faster with warm hydrochloric acid than with cold hydrochloric acid? A The warm hydrochloric acid acts as a catalyst - OCR Gateway - GCSE Chemistry - Question 3 - 2023 - Paper 2
Step 1
C The warm hydrochloric acid has particles with more energy.
Answer
When comparing the reaction rates of marble chips with warm and cold hydrochloric acid, the key factor is the energy of the particles involved in the reaction. Warm hydrochloric acid has particles that possess greater kinetic energy compared to those in cold hydrochloric acid. This increased energy results in more effective collisions between the acid particles and the marble chips, leading to a faster reaction rate. Therefore, option C is the correct answer.