Answered: temperature increase

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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Question

An engineer is designing a wire using an unknown material that will carry large amounts of electricity. The resistive heating of a 56.91 g wire is expected to add 575 J of heat energy during a 20-minute operating cycle.

What is the temperature increase of the wire?

You may use the following information about the unknown material to answer the question:

Specific Heat = 0.224 J g^-1 °C^-1

Density = 9.63 g/cm³

Coefficient Thermal Expansion = 9.8 µm m^-1 K^-1

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