Boyle's Law states that pressure and volume of a gas have an inverse relationship. This means that when one increases, the other decreases. If one decreases, the other increases. The assumption is that temperature and moles of gas do not change.
#1: A gas occupies 12.3 liters at a pressure of 40.0 mmHg. What is the volume when the pressure is increased to 60.0 mmHg?
(40.0 mmHg) (12.3 liters) = (60.0 mmHg) (x)
x = 8.20 L
Note three significant figures.
Base on the graph Pressure is on the y-axis and volume is on the x-axis. The recorded volume is decreasing and the recorded pressure is increasing since the relationship of volume and pressure is inversely proportional when the temperature and the amount of gas are constant. So the line graph must be going downward.
Hope it helps…
Vf= final volume