2 - Factors Affecting Reaction Rates
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Practice Questions
Test your understanding with targeted questions
What is concentration and how does it affect reaction rates?
💡 Hint: Think about how many particles are present.
Define activation energy.
💡 Hint: It's what must be overcome for a reaction to happen.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What happens to reaction rates when the concentration of reactants increases?
💡 Hint: Think about how many particles are available to collide.
True or False: Catalysts are consumed in the chemical reactions they facilitate.
💡 Hint: Consider what catalysts do versus what happens to them.
1 more question available
Challenge Problems
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Given a reaction with activation energy of 50 kJ/mol, calculate the rate constant at 298K, and analyze how increasing temperature by 20K alters the rate constant using the Arrhenius equation.
💡 Hint: Apply k = A exp(-Ea/(RT)) and calculate separately for 298K and 318K to observe the change.
A solid reactant's size changes from large chunks to fine powder. Describe how this alters the reaction rate with an example.
💡 Hint: Consider the collisions happening on the surface and how more area contributes to those collisions.
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