FIGURE Q21.30 + + + + + + + + + + + +

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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Shown are the configuration of a gel electrophoresis experiment. Charged plates establish an electric field on a region of gel between the plates. A solution of DNA fragments, which acquire a negative charge in solution, is analyzed by using an electric field to drive the fragments through the gel. A drag force opposes the motion, causing the fragments to move at a constant speed. Larger fragments move more slowly, so the fragments separate by size to give a “fingerprint” of the sample.

What is the energy transformation as the fragments move through the gel?
A. Electric potential energy to kinetic energy
B. Electric potential energy to thermal energy
C. Electric potential energy to kinetic energy and thermal energy
D. Kinetic energy to thermal energy

FIGURE Q21.30
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Transcribed Image Text:FIGURE Q21.30 + + + + + + + + + + + +
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