Which scientists gave gas laws from the basis of physical properties of gas ? Give their Laws.

Explanation

(i) Boyle : Robert Boyle in 1662 did trustable measurement of gaseous properties.
Boyle.s Low : At constant temperature, volume of fixed amount of any gas is inversely proportional to its pressure...
`p prop (1)/(V )" "` (at constant T and n)
`therefore p=k_(1)(1)/(V)`
(ii) Jacks Charle.s Law : Jacks Charle.s performed several experiments on gases independently to improve upon hot air balloon technology. Their inverstigations showed that for a fixed mass of gas at constnat pressure, volume of gas increases on increasing temperature and decreases on cooling.
`V prop T` (at constnat n and p)
(ii) Joseph Gay Lussac : Pressure in well inflated types of automobilesis almost constant, but on a hot summer day this increases considerably and tyre may burst if pressure is not asdjucted properly. During winters, on a cold morning one may find the pressure in the types of vehicle decreased considerably.
Law : ..At constant volume, pressure of a fixed amount of a gas varies directly with the temperature.
`p prop T` (at constant n and V)
`therefore (p)/(T)=k_(3)=` constant
(iv) Avogadro Law : In 1811 Italian Scientist Amedeo Avigardro tried to combined conclusions of Dalton.s atomic theory and Gay Lussac.s law of combining volumes which is now known as Avogadro Law.
Law : It states that equal volumes of all gases under the same conditions of temperature and pressure contain equal number of molecules.
`V prop n` (at constant T and p)
where, n is the number of moles of the gas.
`therefore V=k_(4)n`