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Chapter 9: Q6 E (page 506)
A typical barometric pressure in Kansas City is 740 torr. What is this pressure in atmospheres, in millimeters of mercury, and in kilopascals?
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Sometimes leaving a bicycle in the sun on a hot day will cause a blowout. Why?
A cylinder of \({{\bf{O}}_2}\)(g) used in breathing by emphysema patients has a volume of \({\bf{3}}.{\bf{00}}\)L at a pressure of 10.0 atm. If the temperature of the cylinder is \({\bf{28}}.{\bf{0}}{\rm{ }}^\circ {\bf{C}}\), what mass of oxygen is in the cylinder?
Calculate the volume of oxygen required to burn \[12.00\;{\rm{L}}\] of ethane gas, \[{{\rm{C}}_2}{{\rm{H}}_6}\], to produce carbon dioxide and water, if the volumes of \[{{\rm{C}}_2}{{\rm{H}}_6}\]and \[{{\rm{O}}_2}\]are measured under the same conditions of temperature and pressure.
An alternate way to state Avogadro鈥檚 law is 鈥淎ll other things being equal, the number of molecules in a gas is directly proportional to the volume of the gas.鈥� (a) What is the meaning of the term 鈥渄irectly proportional?鈥� (b) What are the 鈥渙ther things鈥� that must be equal?
Question: Describe what happens to the average kinetic energy of ideal gas molecules when the conditions are changed as follows:
(a) The pressure of the gas is increased by reducing the volume at constant temperature.
(b) The pressure of the gas is increased by increasing the temperature at constant volume.
(c) The average velocity of the molecules is increased by a factor of \({\rm{2}}\).
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