Thursday 11 December 2014

Boyle's Law

Boyle's Law was made by this guy named Robert Boyle. Boyle put mercury into a J-Tube and played around with different amounts of pressure and he noticed that as he increased the pressure the volume decreased. This is an inverse relationship, one thing is going up making the other thing go down. Boyle tried to find a mathematical relationship between pressure and the volume of a gas. He found that pressure times volume equals a constant. From this we get the formula P1*V1=K. *yawns* . This all may seem super boring it is super important.



This Guy (Nice Hair)


Why is this so important?

Boyle's Law is one of the few things you learn in school that you actually can see and/or use in real life. You see examples of Boyle's Law when you deep sea dive. When you resurface after deep sea diving the close you get to the surface the bigger the bubbles you exhale are. This is because the pressure of the water on you decreases so the volume of the bubbles increases. That is Boyle's law. 
Boyle's law also explains things like why your ears pop when flying in an airplane and why if you bring a deep sea fish to the surface it dies.










Charles's Law




Charles's Law

Charles's law states that as the temperature was increase, so did the volume.The Charles's law also known as the law of volume. Think of it this way, as the temperature of the gas increase, the gas molecules will begin to move around more quickly and hit the walls of their container with more force-thus the volume will increase. 

Here is the formula about Charles's Law: V1/T1=K




This image shows how Charles's law's relationship between volume and temperature.  



Real life examples:
A real life example of Charles law is when you leave a ball (Basketball, Football, Soccer ball) outside in the cold and it shrinks. This is because when the temperature decreases so does the volume.





















Gay-Lussac's law

Joseph Gay-Lussac
He is the guy how found that the pressure of a gas varies directly with the temperature of the gas. So we also call it Gay-Lussac's law.
The law of combining volumes states that, when gases react together to form other gases, and all volumes are measured at the same temperature and pressure:The ratio between the volumes of the reactant gases and the products can be expressed in simple whole numbers.
We get the formula as: P1/T1=K


Real life Examples:
A real life example of Gay-Lussac's law is the firing of guns or canons. When gun powder burns it creates a large amount of super hot gas. The pressure from the gas pushes the bullet out of the barrel.