Some reactions are slower than others because they:
Correct answer: D. Have low [R]
- A. Lack light
- B. Lack catalyst
- C. Have high Ea
- D. Have low [R]
Explanation
The rate of a chemical reaction is directly proportional to the concentration of the reactants. If the concentration of reactants is low, the rate of the reaction will also be low. This is because there are fewer reactant molecules available to collide and participate in the reaction.
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About Reaction Kinetics
Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
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