BOYLES LAW APPARATUS

BOYLES LAW APPARATUS

Two types of Boyles Law Apparatus for use in the laboratory.

(Wikipedia excerpt: …”Boyle’s law, also referred to as the Boyle–Mariotte law or Mariotte’s law (especially in France), is an empirical gas law that describes the relationship between pressure and volume of a confined gas. Boyle’s law has been stated as:
The absolute pressure exerted by a given mass of an ideal gas is inversely proportional to the volume it occupies if the temperature and amount of gas remain unchanged within a closed system.

Mathematically, Boyle’s law can be stated as: P ∝ 1 V {\displaystyle P\propto {\frac {1}{V}}} Pressure is inversely proportional to the volume
or PV = k The product of pressure and volume is a constant number (here denoted as k) where P is the pressure of the gas, V is the volume of the gas, and k is a constant for a particular temperature and amount of gas.

Boyle’s law states that when the temperature of a given mass of confined gas is constant, the product of its pressure and volume is also constant. When comparing the same substance under two different sets of conditions, the law can be expressed as:
P 1 V 1 = P 2 V 2 . {\displaystyle P_{1}V_{1}=P_{2}V_{2}.} showing that as volume increases, the pressure of a gas decreases proportionally, and vice versa.

Boyle’s law is named after Robert Boyle, who published the original law in 1662.[3] An equivalent law is Mariotte’s law, named after French physicist Edme Mariotte.