   # Calculate the internal energy change for each of the following. a. One hundred (100.) joules of work is required to compress a gas. At the same time, the gas releases 23 J of heat. b. A piston is compressed from a volume of 8.30 L to 2.80 L against a constant pressure of 1.90 atm. In the process, there is a heat gain by the system of 350. J. c. A piston expands against 1.00 atm of pressure from 11.2 L to 29.1 L. In the process, 1037 J of heat is absorbed. ### 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 7, Problem 34E
Textbook Problem
4 views

## Calculate the internal energy change for each of the following.a. One hundred (100.) joules of work is required to compress a gas. At the same time, the gas releases 23 J of heat.b. A piston is compressed from a volume of 8.30 L to 2.80 L against a constant pressure of 1.90 atm. In the process, there is a heat gain by the system of 350. J.c. A piston expands against 1.00 atm of pressure from 11.2 L to 29.1 L. In the process, 1037 J of heat is absorbed.

(a)

Interpretation Introduction

Interpretation: The internal energy change for given cases are calculated.

Concept Introduction:  Internal energy is a total energy of a system, consists of kinetic, potential energies. The internal energy change is accompanied by the heat flow or as work done on or by a system.

Formula:

ΔE=q±w......(1)

q is a heat

w is a work

Work done by the system means heat and work will be

ΔE=q-w......(2)

Work done on the system means heat and work will be

ΔE=q+w......(3)

w=-PΔV......(4)

P is a constant pressure

ΔV is a volume change

### Explanation of Solution

Given data:

Relesed heat q (a) =23J

Compression work (a) w=100J

Volume change ΔV (b)= (2.80+8.30) =-5.50L

Constant pressure (b) =1.90atm

Heat gained q (b) =350J

Volume change ΔV (c)= (29.1-11.2) =17.90 L

Constant pressure (c) =1

(b)

Interpretation Introduction

Interpretation: The internal energy change for given cases are calculated.

Concept Introduction:  Internal energy is a total energy of a system, consists of kinetic, potential energies. The internal energy change is accompanied by the heat flow or as work done on or by a system.

Formula:

ΔE=q±w......(1)

q is a heat

w is a work

Work done by the system means heat and work will be

ΔE=q-w......(2)

Work done on the system means heat and work will be

ΔE=q+w......(3)

w=-PΔV......(4)

P is a constant pressure

ΔV is a volume change

(c)

Interpretation Introduction

Interpretation: The internal energy change for given cases are calculated.

Concept Introduction:  Internal energy is a total energy of a system, consists of kinetic, potential energies. The internal energy change is accompanied by the heat flow or as work done on or by a system.

Formula:

ΔE=q±w......(1)

q is a heat

w is a work

Work done by the system means heat and work will be

ΔE=q-w......(2)

Work done on the system means heat and work will be

ΔE=q+w......(3)

w=-PΔV......(4)

P is a constant pressure

ΔV is a volume change

### 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
Magnesium a. assists in the operation of enzymes. b. is needed for the release and use of energy. c. is critica...

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

What are the four basic components of an ecosystem?

Fundamentals of Physical Geography

Do glycosides undergo mutarotation?

Introduction to General, Organic and Biochemistry

1. What characteristics distinguish animals from plants and fungi?

Biology: The Dynamic Science (MindTap Course List)

What is the difference between asterism d a constellation? Give some examples.

Horizons: Exploring the Universe (MindTap Course List)

A cannon shell is fired straight up from the ground at an initial speed of225 m/s. After how much time is the s...

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

Why do you suppose the Chinese had a better grasp of Earths age than the contemporary Europeans?

Oceanography: An Invitation To Marine Science, Loose-leaf Versin 