Charle's Law exercises 


A gas was placed in a piston at 20^{o}C and occupied a volume of 20ml. The gas was then heated to 100^{o}C and allowed to expand under constant pressure. What is the final volume of the gas.


1) A sample
of air at 40^{o}C is placed in a piston, similar to the one shown
above, and occupies a volume of 10ml. The sample was heated to 240^{o}C
and the piston allowed to expand under atmospheric pressure. What was
the final volume of the gas inside the piston?


2) 6 litres of gas has been collected at 20^{o}C. What volume will the gas occupy at 140^{o}C if the pressure remains constant?  
3) 0.035 litres of gas has been collected at 0^{o}C. What volume will the gas occupy at 40^{o}C if the pressure remains constant?  
4) 400 litres of air is placed in a sealed balloon at 20^{o}C. In order to take off the balloon must expand to a volume of 2,000 litres. What must the temperature of the air inside the balloon be before it can lift off? 