   # The equilibrium constant is 0.0900 at 25°C for the reaction H 2 O ( g ) + Cl 2 O ( g ) ⇌ 2 HOCl ( g ) For which of the following sets of conditions is the system at equilibrium? For those that are not at equilibrium, in which direction will the system shift? a . A 1.0-L flask contains 1.0 mole of HOCI, 0.10 mole of Cl 2 O, and 0.10 mole of H 2 O. b . A 2.0-L flask contains 0.084 mole of HOCI, 0.080 mole of Cl 2 O, and 0.98 mole of H 2 O. c . A 3.0-L flask contains 0.25 mole of HOCI, 0.0010 mole of Cl 2 O, and 0.56 mole of H 2 O. ### Chemistry: An Atoms First Approach

2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243

#### Solutions

Chapter
Section ### Chemistry: An Atoms First Approach

2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243
Chapter 12, Problem 39E
Textbook Problem
65 views

## The equilibrium constant is 0.0900 at 25°C for the reaction H 2 O ( g ) + Cl 2 O ( g ) ⇌ 2 HOCl ( g ) For which of the following sets of conditions is the system at equilibrium? For those that are not at equilibrium, in which direction will the system shift?a. A 1.0-L flask contains 1.0 mole of HOCI, 0.10 mole of Cl2O, and 0.10 mole of H2O.b. A 2.0-L flask contains 0.084 mole of HOCI, 0.080 mole of Cl2O, and 0.98 mole of H2O.c. A 3.0-L flask contains 0.25 mole of HOCI, 0.0010 mole of Cl2O, and 0.56 mole of H2O.

(a)

Interpretation Introduction

Interpretation: The equilibrium constant value at 25°C for the stated reaction between H2O and Cl2O is 0.0900 . The values that correspond to a system at equilibrium are to be identified. The direction of shift for the reactions that are not at equilibrium is to be stated.

Concept introduction: The state when the reactants involved in a chemical reaction and the products formed in the reaction exist in concentrations having no further tendency to change is known as an equilibrium state of the reaction. When the equilibrium constant is expressed in terms of concentration, it is represented K . A reaction quotient is defined as a function of concentrations of the involved chemical species in a given chemical reaction. It is represented by ‘ Q ’. At equilibrium Q=K .

To determine: The concentrations of H2O , Cl2O and HOCl for the given reaction.

### Explanation of Solution

Given

The stated reaction is,

H2O(g)+Cl2O(g)2HOCl(g)

The number of moles H2O is 0.10mole .

The number of moles Cl2O is 0.10mole .

The number of moles HOCl is 1.0mole .

The given volume of the flask is 1.0L .

The concentration of a reactant is calculated by the formula,

Concentration=MolesVolume(L)

For H2O ,

The concentration of H2O is calculated by the formula,

Substitute the values of the number of moles of H2O and the volume of the flask in the above expression in the above

ConcentrationofH2O=0.10mole1.0L=0.10M_

For Cl2O ,

The concentration of Cl2O is calculated by the formula,

Substitute the values of the number of moles of Cl2O and the volume of the flask in the above expression in the above

ConcentrationofCl2O=0.10mole1.0L=0

(b)

Interpretation Introduction

Interpretation: The equilibrium constant value at 25°C for the stated reaction between H2O and Cl2O is 0.0900 . The values that correspond to a system at equilibrium are to be identified. The direction of shift for the reactions that are not at equilibrium is to be stated.

Concept introduction: The state when the reactants involved in a chemical reaction and the products formed in the reaction exist in concentrations having no further tendency to change is known as an equilibrium state of the reaction. When the equilibrium constant is expressed in terms of concentration, it is represented K . A reaction quotient is defined as a function of concentrations of the involved chemical species in a given chemical reaction. It is represented by ‘ Q ’. At equilibrium Q=K .

To determine: If the given values correspond to a system at equilibrium and the direction of shift if the reaction is not at equilibrium.

(c)

Interpretation Introduction

Interpretation: The equilibrium constant value at 25°C for the stated reaction between H2O and Cl2O is 0.0900 . The values that correspond to a system at equilibrium are to be identified. The direction of shift for the reactions that are not at equilibrium is to be stated.

Concept introduction: The state when the reactants involved in a chemical reaction and the products formed in the reaction exist in concentrations having no further tendency to change is known as an equilibrium state of the reaction. When the equilibrium constant is expressed in terms of concentration, it is represented K . A reaction quotient is defined as a function of concentrations of the involved chemical species in a given chemical reaction. It is represented by ‘ Q ’. At equilibrium Q=K .

To determine: If the given values correspond to a system at equilibrium and the direction of shift if the reaction is not at equilibrium.

### 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

Find more solutions based on key concepts
Vitamin K can be made from exposure to sunlight. can be obtained from most milk products. can be made by digest...

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

What are the features of a healthy high-fat diet?

Understanding Nutrition (MindTap Course List)

What is the standard unit of volume in the SI?

An Introduction to Physical Science

Provide two reasons why meiosis leads to genetic variation in diploid organisms.

Human Heredity: Principles and Issues (MindTap Course List)

A 2.00-L container has a center partition that divides it into two equal parts as shown in Figure P21.24. The l...

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