2.5 - Presence of a Catalyst
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Practice Questions
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What is a catalyst?
💡 Hint: Remember, it speeds up reactions without being consumed.
Name one type of catalyst.
💡 Hint: Think about the phases they exist in.
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Interactive Quizzes
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What is the primary function of a catalyst?
💡 Hint: Think about what catalysts do in reactions.
Catalysts are consumed in the reactions they facilitate.
💡 Hint: Remember that they can be reused.
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Challenge Problems
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A reaction has an activation energy of 100 kJ/mol. Using a catalyst, this energy is lowered to 70 kJ/mol. Calculate the factor by which the reaction rate might increase, assuming transition states are reached more often with the lower activation energy.
💡 Hint: Consider how often molecules hit the transition state.
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