209. assignment (gas in a container)

a) If 0.8 mol of a gas in a container occupies a volume of 14.0 l at a pressure of 1.0 atm, what is the temperature of the gas (in K)? 

 

b) The container is fitted with a piston so that the volume can change. When the gas is heated at constant pressure, it expands to a volume of 22.0 l. What is the temperature of the gas (in K)? 

 

c) The volume is fixed at 22.0 l, and the gas is heated at constant volume until its temperature is 353.0 K. What is the pressure (in atm) of the gas now?

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