EBK PHYSICAL CHEMISTRY
EBK PHYSICAL CHEMISTRY
2nd Edition
ISBN: 8220100477560
Author: Ball
Publisher: Cengage Learning US
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Chapter 22, Problem 22.28E

The Young-Dupré equation, equation 22.16, is difficult to use directly because of the near-impossibility of measuring the surface tension of the liquid-gas interface, γ /v . However, the form of the Young-Dupré equation in equation 22.17 is useful to help determine what needs to be done to the solid-liquid interface to increase or decrease the wettability of a solid by a liquid. (a) What would you do to a liquid if you wanted to increase the wettability (that is, make cos q as small as possible)? (b) What would you do to a solid if you wanted to decrease the wettability (that is, make cos θ as large as possible)?

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EBK PHYSICAL CHEMISTRY

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