   # A system undergoes a process consisting of the following two steps: Step 1: The system absorbs 72 J of heat while 35 J of work is done on it. Step 2: The system absorbs 35 J of heat while performing 72 J of work. Calculate ∆ E for the overall process. ### 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 32E
Textbook Problem
15 views

## A system undergoes a process consisting of the following two steps:Step 1: The system absorbs 72 J of heat while 35 J of work is done on it.Step 2: The system absorbs 35 J of heat while performing 72 J of work.Calculate ∆E for the overall process.

Interpretation Introduction

Interpretation: The internal energy change ΔE for the overall process should be calculated.

Concept Introduction:

Internal energy is a total energy of a system, it expressed by sum of kinetic, potential energies. The internal energy change is associate with 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

Work done on the system means heat and work will be

ΔE=q+w

### Explanation of Solution

Explanation

Given data:

Work (step1) w=35J

Heat (step 1) q=72J

Heat (step 2) q=35J

To calculate the internal energy change ΔE for step (1).

ΔE=72+35

=107J

The given heat and work are plugging in to equation 1 to get internal energy change of a system in step (1). The internal energy change step (1) is 107KJ .

To calculate the internal energy change ΔE for step (2). As follows –

Work (step2) ΔE=35-72

=-37J

The given heat and work are plugging in to equation 1 to get internal energy change of a system in step (2)

### 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
Which weighs more, 4.25 g of gold or 425 mg of gold?

Introductory Chemistry: A Foundation

How were we able to map the moon in such detail?

Fundamentals of Physical Geography

_______ is/are removed from a new mRNA a. Introns b. Exons c. A poly-A tail d. Amino acids

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

This controversy addresses accusations launched against sugars in foods and beverages as causes of health probl...

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

What is population genetics?

Human Heredity: Principles and Issues (MindTap Course List)

What is the function of the central vacuole in plants?

Biology: The Dynamic Science (MindTap Course List)

True or false? Only women make follicle-stimulating hormone (FSH).

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

An astronaut hits a golf ball on the Moon. Which of the following quantities, if any. remain constant as a ball...

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

For single-slit diffraction, what ratio /w produces a first dark fringe at exactly 1=30?

Physics for Scientists and Engineers: Foundations and Connections 