Mathematical Modeling Questions for Secondary School Curriculum | Page 19

Pressure and volume of gases

Author : Abel Carenas Velamazán
Boyle ' s law is an experimental gas law that describes how the pressure of a gas tends to increase as the volume of the container decreases . A modern statement of Boyle ' s law is :
“ The absolute pressure exerted by a given mass of an ideal gas is inversely proportional to the volume it occupies if the temperature and the quantity of gas remain unchanged within a closed system ”
A )
Explain what happens in the graph
B )
Write the expression that relates between volume and pressure at constant temperature .
C )
A quantity of gas occupies a volume of 70 L at a pressure of 0.8 atm . What volume will it
occupy at a pressure of 1.2 atm if the temperature does not change ?
D )
A balloon explodes if the volume inside it exceeds 5 L . If for a pressure of 1.25 atm the
volume of the balloon is 3 L , at what pressure will the balloon explode ?
Related Topics and Concepts : State variables in gases Real Life Context : Physics and Fluid Technology