Chemical Kinetics
Telangana Open School (TOSS) · Class 12 · Chemistry
Practice quiz for Chemical Kinetics — Telangana Open School (TOSS) Class 12 Chemistry. MCQs and questions with answers to test your preparation.
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Quick Quiz: Chemical Kinetics
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What is the unit of the rate of a chemical reaction?
For the reaction 2NO(g) + Br₂(g) → 2NOBr(g), which expression correctly represents the rate of reaction?
Which of the following is a zero-order reaction?
The rate constant of a first-order reaction has the unit:
Sample Questions
Which factor does NOT affect the rate of a chemical reaction?
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Volume of container
While volume may affect concentration, it is not a direct factor. The main factors are concentration, temperature, and catalyst.
The rate law is determined by:
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Experimental data
The rate law, including the order of reaction, must be determined experimentally and cannot be deduced from the balanced equation.
The Arrhenius equation is:
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k = A e^(-E_a/RT)
The Arrhenius equation relates the rate constant k to temperature T and activation energy E_a as k = A e^(-E_a/RT), where A is the frequency factor.
The instantaneous rate of a reaction is measured as:
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d[concentration]/dt
Instantaneous rate is the rate at a particular instant, given by the derivative d[concentration]/dt as Δt approaches zero.
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