A chemical reaction is run in which 260 Joules of heat are generated and 581 Joules of work are done by the system.Calculate the change in the internal energy of the chemical system.JΔΕ=

Answered: A chemical reaction is run in which 260…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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A chemical reaction is run in which 260 Joules of heat are generated and 581 Joules of work are done by the system.
Calculate the change in the internal energy of the chemical system.
J
ΔΕ
=

Expert Solution

Step 1

Introduction

Energy cannot be created or destroyed; instead, it can only be converted from one form to another, according to the basic law of thermodynamics. The law of conservation of energy is another name for this rule. Energy can be changed from one form to another, but it cannot be created or destroyed, according to the law. This basically indicates that energy cannot vanish; even if it changes forms, the amount of energy in the universe as a whole does not change.

According to the question,

The heat generated( releasing) is given by = $q = - 260 J (b e c a u s e h e a t i s r e l e a s e d)$

The work done by the system is given by = $W = - 581 J (w o r k d o n e b y t h e s y s t e m)$

Find- The change in the internal energy

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