Rate of Chemical Reactions
Chemistry ⇒ Chemical Kinetics and Equilibrium
Rate of Chemical Reactions starts at 10 and continues till grade 12.
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See sample questions for grade 10
A reaction mixture loses 0.5 g in 10 seconds. What is the average rate of mass loss in g/s?
A reaction produces 24 mL of gas in 2 minutes. What is the average rate of gas production in mL/min?
A reaction produces 60 mL of gas in 3 minutes. What is the average rate of gas production in mL/min?
A student adds a catalyst to a reaction and observes that the reaction finishes in half the time. Has the catalyst changed the amount of product formed?
Describe how the presence of a catalyst affects the activation energy of a reaction.
Describe one way to measure the rate of a reaction that produces a gas.
Describe what is meant by the term 'instantaneous rate of reaction'.
Explain how temperature affects the rate of a chemical reaction.
Explain why increasing the pressure increases the rate of a reaction involving gases.
Explain why powdered zinc reacts faster with hydrochloric acid than a lump of zinc.
Explain why reactions generally go faster at higher temperatures.
If a reaction mixture is heated, what happens to the frequency of collisions between particles?
If the concentration of a reactant is doubled, what generally happens to the rate of reaction?
In the reaction: 2H2O2 → 2H2O + O2, if 1 mole of O2 is produced in 10 minutes, what is the average rate of O2 production in mol/min?
State one reason why a reaction might slow down as it proceeds.
State one way to increase the surface area of a solid reactant.
State the collision theory of chemical reactions.
What is meant by the rate of a chemical reaction?
