Knowee
Questions
Features
Study Tools

If a reaction is first order overall which of the following would be possible units for the rate constant?Question 4Select one:s–1.(mol/L) s–1. (mol/L)–1 s–1.(mol/L)–2 s–1.(mol/L) s.

Question

If a reaction is first order overall which of the following would be possible units for the rate constant?Question 4Select one:s–1.(mol/L) s–1. (mol/L)–1 s–1.(mol/L)–2 s–1.(mol/L) s.

🧐 Not the exact question you are looking for?Go ask a question

Solution

The rate constant for a first order reaction has the units of s^-1 (per second). This is because the rate of a first order reaction is directly proportional to the concentration of one reactant. The units of rate are usually mol/(L*s), and the units of concentration are mol/L. Therefore, to get the units of rate when multiplied by concentration, the units of the rate constant must be 1/s or s^-1. So, the correct answer is s^-1.

This problem has been solved

Similar Questions

What are the units of the rate constant k for a second order reaction?Question 47 Answer Choices   A.  1/s   B.  1/s2   C.  L/(mol•s)   D.  L/(mol•s2)

What is the rate constant of a reaction if rate = 1.5 (mol/L)/s, [A] is 1 M, [B] is 3 M, m = 2, and n = 1?A.0.17B.4.5C.13.5D.0.5SUBMITarrow_backPREVIOUS

15. The rate constant for a first order reaction depends on _____________

The rate constant of a first order reaction is 4×10−3sec−1 .At a reactant concentration of 0.02 M, the rate of reaction would be:

A first order reaction has the rate constant,  k=4.6×10−3 s−1. The number of correct statement/s from the following is/are Given: log 3=0.48.A. Reaction completes in 1000 s.B. The reaction has a half-life of 500 s.C. The time required for 10% completion is 25 times the time required for 90% completion.D. The degree of dissociation is equal to (1−e−kt).E. The rate and the rate constant have the same unit.

1/3

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.