Ideal Gas Law: If a certain sample of an ideal gas has a temperature of 104°C and exerts a pressure of 2.3 × 104 Pa on the walls of its container, how many gas molecules are present in each cubic centimeter of volume? The ideal gas constant is R = 8.31 J/mol × K and Avogadro's number is NA = 6.022 × 1023 molecules/mol.
Fill in the blank(s) with the appropriate word(s).
4.4 × 1018 molecules
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Small glaciers that form along mountains in hollow depressions are called
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An electron moving perpendicular to a magnetic field of 3.2 × 10-2 T moves in a circle of radius 0.40 cm. How fast is this electron moving?
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Which best describes the property of surface tension in the examples pictured here?
a. Neighboring molecules of the liquid bond to each other, forming a flexible atomic sheet at the surface. b. Molecules at the surface have different properties than atoms surrounded on all sides by other atoms. c. At a surface, the interaction between air molecules and the fluid create the surface tension. d. The surface tension pulls molecules out from the center of a liquid to the surface. e. The surface tension only occurs at high temperatures.