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Chapter 12: Q1. (page 373)

Write the rate equations for a first-order and a second-order reaction.

Short Answer

Expert verified

The rate equation for a first-order reaction is k =1tlnA0Aand the rate equation for a second-order reaction is k =1t1A-1A0.

Step by step solution

01

Rate equation

A chemical reaction's rate law (also known as the rate equation) is an expression that establishes a link between the reaction's pace and the concentrations of the reactants involved.

The pace at which reactants are consumed or products are created is known as the rate of a chemical reaction.

02

First-order reaction

The rate equation for first-order reaction is,

k=1tlnA0A

where,

k= Rate constant

03

Second-order reaction

The rate equation for second-order reaction is,

k=1t1A-1A0

where,

k=Rate constant

As a result, we may assume that raising a substance's concentration will increase the reaction rate.

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Most popular questions from this chapter

Calculate the half-life, in years, for the reaction2X→Y when the starting concentration of X is6μM and the rate constant is 3.6×10‐3M‐1s‐1.

Why are such allosteric enzymes composed of more than one catalytic subunit?

The hypothetical elementary reaction 2A→B+Chas a rate constant of 10‐6M‐1s‐1. What is the reaction velocity when the concentration of A is 10mM?

Based on some preliminary measurements, you suspect that a sample of enzyme contains an irreversible enzyme inhibitor. You decide to dilute the sample 100-fold and remeasure the enzyme's activity. What would your results show if an irreversible inhibitor is present?

Consider the nonenzymatic elementary reaction A → B. When the
concentration of A is 20 mM, the reaction velocity is measured as 5 µM
B produced per minute. (a) Calculate the rate constant for this reaction.
(6) What is the molecularity of the reaction?
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