Liquified petroleum gas (LPG) is propane stored under sufficient pressure to liquify it. When a tank of LPG is opened the propane vaporizes and is released as gas-phase propane. a) If a 50.0 g sample of LPG is released into an otherwise empty cylinder with a piston, what volume of gas is produced at 1.00 atm and 25.0 oC? b) If the resulting gas (assume ideal behavior) sample is heated to 50 oC while simultaneously doubling the pressure, what is the volume that the gas occupies? c) Briefly explain what effect this i) heating, and ii) pressurizing, of the gas will do to the average kinetic energy of the propane
Ideal and Real Gases
Ideal gases obey conditions of the general gas laws under all states of pressure and temperature. Ideal gases are also named perfect gases. The attributes of ideal gases are as follows,
Gas Laws
Gas laws describe the ways in which volume, temperature, pressure, and other conditions correlate when matter is in a gaseous state. The very first observations about the physical properties of gases was made by Robert Boyle in 1662. Later discoveries were made by Charles, Gay-Lussac, Avogadro, and others. Eventually, these observations were combined to produce the ideal gas law.
Gaseous State
It is well known that matter exists in different forms in our surroundings. There are five known states of matter, such as solids, gases, liquids, plasma and Bose-Einstein condensate. The last two are known newly in the recent days. Thus, the detailed forms of matter studied are solids, gases and liquids. The best example of a substance that is present in different states is water. It is solid ice, gaseous vapor or steam and liquid water depending on the temperature and pressure conditions. This is due to the difference in the intermolecular forces and distances. The occurrence of three different phases is due to the difference in the two major forces, the force which tends to tightly hold molecules i.e., forces of attraction and the disruptive forces obtained from the thermal energy of molecules.
Liquified petroleum gas (LPG) is propane stored under sufficient pressure to liquify it. When a tank of LPG is opened the propane vaporizes and is released as gas-phase propane.
a) If a 50.0 g sample of LPG is released into an otherwise empty cylinder with a piston, what volume of gas is produced at 1.00 atm and 25.0 oC?
b) If the resulting gas (assume ideal behavior) sample is heated to 50 oC while simultaneously doubling the pressure, what is the volume that the gas occupies?
c) Briefly explain what effect this i) heating, and ii) pressurizing, of the gas will do to the average kinetic energy of the propane.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 2 images
