Robert Boyle Robert Boyle. The following are some of the more important of his works: Among his religious and philosophical writings were: Robert Boyle Robert Boyle (; 25 January 1627 – 31 December 1691) was an Anglo-Irish natural philosopher, chemist, physicist, and inventor. Boyle is largely regarded today as the first modern chemist, and therefore one of the founders of modern chemistry, and one of the pioneers of modern experimental scientific method. He is best known for Boyle's law, which describes the inversely proportional relationship between the absolute pressure and volume of a gas, if the temperature is kept constant within a
Molar volume an ideal gas: Hence, for a given temperature and pressure, the molar volume is the same for all ideal gases and is known to the same precision as the gas constant: "R" = 0.082 057 338(47) L atm K mol, that is a relative standard uncertainty of 5.7×10, according to the 2014 CODATA recommended value. The molar volume of an ideal gas at 100 kPa (1 bar) is The molar volume of an ideal gas at 1 atmosphere of pressure is For crystalline solids, the molar volume can be measured by X-ray crystallography. The unit cell volume ("V") may be