Moderate

The half-life for first order reaction is independent of initial:

Correct answer: C. Concentration

  • A. Temperature
  • B. Pressure
  • C. Concentration
  • D. All of these

Explanation

The half-life of a first-order reaction is independent of the initial concentration of the reactant. The half-life of a first-order reaction only depends on the rate constant of the reaction.

Last updated

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.

Practise Reaction Kinetics

573 free Reaction Kinetics MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Chemistry questions like this

Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions