A tank of argon gas has a volume of 0.0152 m3. The gas has a pressure of 5.50 atm and a temperature of 293 K.
How many argon atoms are in the tank?
The tank is fitted with a piston and the gas is allowed to expand isothermally until its pressure is 3.10 atm. Subsequently, the pressure drops to 1.00 atm at constant volume.
What is the final temperature of the gas?