Originally Answered: Can someone help me out, it's about BOYLE'S LAW ?!?
There are three parameters involved in a given mass of a gas, pressure, volume and temperature.
Once we say that for a given mass of a gas, the mass is fixed.
Thus there are three possibilities to find the nature of the gas that is how they behave when the quantities involved are changed.
We keep the temperature constant and find how pressure and volume varies.
Boyle' studied these relations and hence it is called Boyle's law. As per this law,
When temperature remains constant the product of pressure and volume is a constant,
PV is a constant.
Similarly we can keep the volume constant and change the pressure and temperature.
In that case P/T is a constant.
And we can keep the pressure constant and change the volume and temperature.
In that case V/T is a constant.
Both the above two variations were studied by Charlie's and hence they are called
Combining the above three laws we write the gas equation
PV = μR*T for any mass of a gas. R is a universal constant and μ is the number of moles.
Among the four quantities P, V, T and μ, we can fix any two quantities and can write the relation between the other two.
If the three quantities are known, then naturally the fourth one is fixed and cannot change.
Charles's Law was also known as the Law of Charles and Gay-Lussac, because Gay-Lussac published it in 1802 using much of Charles's unpublished data from 1787. However, in recent years the term has fallen out of favor, and Gay-Lussac's name is now generally associated with the law of combining volumes. Amontons's Law, Charles's Law, and Boyle's law form the combined gas law. The three gas laws in combination with Avogadro's Law can be generalized by the ideal gas law.