This document reviews the ideal gas law PV=nRT, where P is pressure in atm or kPa, V is volume in L, n is moles of gas, R is the gas constant (either 0.0821 L·atm/(mol·K) or 8.31 L·kPa/(mol·K)), and T is temperature in K. It provides three example problems applying the ideal gas law to calculate temperature, pressure, or volume given values for the other variables.

1. Section 14.3 Review
The Ideal Gas Law
PV=nRT
760 mm Hg = 1atm = 101.3kPa
PV = nRT
R= 0.0821 L•atm/(mol•K)
R= 8.31 L•kPa/(mol•K)
20. If I have 4 moles of a gas at a pressure of 5.6 atm and a volume of 12 liters, what is the temperature?
21. If I contain 3 moles of gas in a container with a volume of 60 liters and at a temperature of 400 K,
what is the pressure inside the container?
22. If I have 7.7 moles of gas at a pressure of 9.1 kPa and at a temperature of 56 0C, what is the volume of
the container that the gas is in?