BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

Solutions

Chapter
Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Gaseous NO2 decomposes at 573 K.

NO2(g) → NO(g) + ½ O2(g)

The concentration of NO2 was measured as a function of time. A graph of 1/[NO2] versus time gives a straight line with a slope of 1.1 L/mol · s. What is the rate law for this reaction? What is the rate constant?

Interpretation Introduction

Interpretation:

The rate law and rate constant has to be given.

Concept introduction:

In order to establish the plausibility of a mechanism, one must compare the rate law of the rate determining step to the experimentally determined rate law.

Rate determining step: In a chemical reaction the rate determining step is the slowest step in which the rate of the reaction depends on the rate of that slowest step.

Rate law: It is generally the rate equation that consists of the reaction rate with the concentration or the pressures of the reactants and constant parameters.

Activation energy: It is defined as the minimum energy required by the reacting species in order to undergo chemical reaction.

Rate constant: The rate constant for a chemical reaction is the proportionality term in the chemical reaction rate law which gives the relationship between the rate and the concentration of the reactant present in the chemical reaction.

Intermediate species: It is the species formed during the middle of the chemical reaction between the reactant and the desired product.

Arrhenius equation:

  • Arrhenius equation is a formula that represents the temperature dependence of reaction rates
  • The Arrhenius equation has to be represented as follows

  k=AeEa/RTlnk=lnAeEa/RTlnk=(EaR)(1T)+lnA

  • Ea represents the activation energy and it’s unit is kJ/mol
  • R represents the universal gas constant and it has the value of 8.314 J/K.mol
  • T represents the absolute temperature
  • A represents the frequency factor or collision frequency
  • e represents the base of natural logarithm
  •  Arrhenius equation equation was proposed by Svante Arrhenius in 1889.
Explanation

The slope plotted versus 1NO2 with time gives straight line with slope value equal to 1.1L/mol.s.

The given chemical reaction is as follows,

  NO2(g)NO(g)+12O2

The rate law of a chemical reaction is an expression that relates the concentration of the reactant with the rate.

The rate law contains proportionality term and the concentration of reactants which their coefficient are raised to the power

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Chapter 14 Solutions

Show all chapter solutions add

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

The number of calories to cut from the diet to produce weight loss should be based on a the amount of weight th...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

22-34 How are aromatic amino acids related to neurotransmitters?

Introduction to General, Organic and Biochemistry

When a standing wave is set up on a string fixed at both ends, which of the following statements is true? (a) T...

Physics for Scientists and Engineers, Technology Update (No access codes included)

_______ are characteristic of cancer. a. Malignant cells b. Neoplasms c. Tumors

Biology: The Unity and Diversity of Life (MindTap Course List)