Half-lives required to convert 100% reactant to product for a first order reaction are:
Correct answer: D. Infinity
- A. 10
- B. 100
- C. 1000
- D. Infinity
Explanation
Option D, "Infinity," is correct for a first-order reaction because any reaction never completely converts all of the reactant to product, regardless of the time allowed.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Reaction Kinetics questions
The collision that results in the formation of product is called:
Doubling the pressure in a liquid phase reaction:
Unit of rate of reaction for a second order mol-1 reaction is
The reaction takes place among the molecules when they have:
Given is the mechanism of decomposition of N2O5. (i) N2O5 → NO2 + NO3 (ii) NO2 + NO3 → NO + NO2 + O2 (iii) NO + NO3 → 2 NO2 The order of reaction is:
What are the possible units of the rate constant, "k" for the given rate equation of a reaction? Rate = k [A][B]