Rate Equations (AQA A-Level Chemistry): Quizzes

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Rate Equations
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What does the rate equation describe?

The rate of a chemical reaction

In the rate equation Rate=k[A]m[B]n\text{Rate} = k[A]^m[B]^n, what does kk represent?

The rate constant

What do mm and nn represent in the rate equation Rate=k[A]m[B]n\text{Rate} = k[A]^m[B]^n?

Orders of reaction

If a reaction has order 2 with respect to A and order 1 with respect to B, what is the overall order?

3

What does zero order with respect to a reactant mean?

Rate is independent of concentration

How does rate relate to concentration for a first order reaction?

Rate is directly proportional

For a second order reaction with respect to a reactant, rate is proportional to what?

The square of concentration

What are the units of kk for a first order reaction?

s−1\text{s}^{-1}

What are the units of kk for a second order reaction?

L mol−1s−1\text{L mol}^{-1} \text{s}^{-1}

How does the rate constant kk change with increasing temperature?

It increases

Explore AQA A-Level Chemistry Revision Notes by Topics

Thermodynamics (A Level only)

Rate Equations (A Level only)

Equilibrium constant (Kp) for Homogeneous Systems (A Level only)

Electrode Potentials & Electrochemical Cells (A Level only)

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Further Acids & Bases Calculations (A Level only)

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Thermodynamics (A Level only)

Rate Equations (A Level only)

Equilibrium constant (Kp) for Homogeneous Systems (A Level only)

Electrode Potentials & Electrochemical Cells (A Level only)

Fundamentals of Acids & Bases (A Level only)

Further Acids & Bases Calculations (A Level only)

Explore AQA A-Level Chemistry Flashcards by Topics

Thermodynamics (A Level only)

Rate Equations (A Level only)

Equilibrium constant (Kp) for Homogeneous Systems (A Level only)

Electrode Potentials & Electrochemical Cells (A Level only)

Fundamentals of Acids & Bases (A Level only)

Further Acids & Bases Calculations (A Level only)

Explore AQA A-Level Chemistry Exam Questions by Topics

Thermodynamics (A Level only)

Rate Equations (A Level only)

Equilibrium constant (Kp) for Homogeneous Systems (A Level only)

Electrode Potentials & Electrochemical Cells (A Level only)

Fundamentals of Acids & Bases (A Level only)

Further Acids & Bases Calculations (A Level only)

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