Rate-Concentration Graphs (AQA A-Level Chemistry): Flashcards

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Rate-Concentration Graphs
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What is the initial rate?

Rate at start when concentrations known and nearly constant

How to measure gas production in rate experiments

Gas syringe to track volume produced

What gradient of tangent at t=0t = 0 represents

Initial rate of reaction

Zero order rate-conc graph

Horizontal line (rate doesn't change with conc)

First order rate-conc graph

Straight line through origin

Second order rate-conc graph

Curve with increasing slope

General form of rate equation

Rate=k[A]m[B]n\text{Rate} = k[A]^m[B]^n

Indicator colour in iodine clock reaction

Blue-black (iodine with starch)

Critical requirement for accurate rate measurements

Constant temperature

Units of rate constant for first order reaction

s−1\text{s}^{-1}

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)

Fundamentals of Acids & Bases (A Level only)

Further Acids & Bases Calculations (A Level only)

Explore AQA A-Level Chemistry Model Answers 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 Quizzes 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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