The equation PV = nRT is called the ideal gas law. It states that pressure times volume equals the number of moles of gas molecules times temperature times the ideal gas constant. By convention, pressure is converted into atmospheres (atm), volume into liters (L) and temperature into degrees Kelvin (K).Know More
Chem Guide explains that by rearranging the equation, the units of the ideal gas constant R are L x atm / moles x K, and the value of R is 0.082057 L atm / (mol K). In other unit systems, especially SI, the units of R are Joules / (mol K), and its value is 8.314.
At standard temperature and pressure, or 1 atmosphere and 273 K, 1 mole of gas occupies 22.4 liters. The equation accurately predicts the behavior of actual gases across a range of pressures and temperatures. Under extreme conditions, however, actual gases deviate from ideal behavior. At low temperatures or high pressures, for example, gas molecules do not collide elastically but instead clump together to form liquid droplets.Learn more about States of Matter
PV Holding Corporation is the parent company of Avis Budget Group, the renowned vehicle rental company. Its global headquarters is located at 6 Sylvan Way, Parsippany, N.J. The group also operates Zipcar, a car sharing network.Full Answer >
Pressure raises the temperature at which a given type of matter changes states, such as going from solid to liquid or liquid to gas. For example, water boils at 212 degrees Fahrenheit at sea level. At higher altitudes, the pressure from the atmosphere decreases and therefore lowers the boiling point.Full Answer >
Liquid nitrogen is nitrogen that has been cooled to a temperature in the range of -321 degrees to -346 degrees Fahrenheit, which is approximately 77 to 63 degrees Kelvin. Higher temperatures cause nitrogen to boil into a gas and lower temperatures turn it into a solid.Full Answer >
Examples of gases include oxygen, nitrogen, helium, hydrogen, argon, fluorine, krypton, neon, radon, xenon and chlorine. These gases are single elements, though many gases are compounds or mixtures. Such gases include carbon dioxide, carbon monoxide, methane, air, ammonia, formaldehyde, ozone, nitrous oxide and natural gas.Full Answer >