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Chapter 5: Problem 66
What is thermal motion?
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The average distance traveled by a molecule between successive collisions is called mean free path. For a given amount of a gas, how does the mean free path of a gas depend on (a) density, (b) temperature at constant volume, (c) pressure at constant temperature, (d) volume at constant temperature, and (e) size of the atoms?
What is the difference between a gas and a vapor? At \(25^{\circ} \mathrm{C},\) which of the following substances in the gas phase should be properly called a gas and which should be called a vapor: molecular nitrogen \(\left(\mathrm{N}_{2}\right),\) mercury?
Molecular chlorine and molecular fluorine combine to form a gaseous product. Under the same conditions of temperature and pressure it is found that one volume of \(\mathrm{Cl}_{2}\) reacts with three volumes of \(\mathrm{F}_{2}\) to yield two volumes of the product. What is the formula of the product?
Why do astronauts have to wear protective suits when they are on the surface of the moon?
A sample of air contains only nitrogen and oxygen gases whose partial pressures are 0.80 atm and 0.20 atm, respectively. Calculate the total pressure and the mole fractions of the gases.
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