   Chapter 11.4, Problem 11.2QQ

Chapter
Section
Textbook Problem

Calculate the slopes for the A, C, and E portions of Figure 11.3. Rank the slopes from least to greatest and explain what your ranking means, (a) A, C, E (b) C, A, E (c) E, A, C (d) E, C, A

To determine
Rank the slopes from least to greatest and explain what ranking means.

Explanation

Given Info: Figure 11.3.

Formula to the slope is,

Slope=TfTiUfUi

• Ti is the initial temperature.
• Tf is the final temperature.
• Ui is the initial energy.
• Uf is the final energy.

Slope A

Substitute 30°C for Ti , 0 °C for Tf , 0 for Ui , and 62.7J for Uf to find slope A.

SlopeA=0°C(30°C)62.7J0J=0.478

Slope C

Substitute 0°C for Ti , 100 °C for Tf , 396J for Ui , and 815J for Uf to find slope B

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