Question

Select the TWO variables that are held constant when testing Boyle's Law in a manometer.

pressure
temperature
volume of gas
mass of gas
atmospheric pressure

Answer 1

Temperature & mass keep constant
Volume and pressure are variable.

Answer 2

Start with the ideal gas law.
\[pV = nRT \]

Boyle's law studies how pressure and volume are related. so that means that nRT is a constant, meaning that the number of moles and the temperature are constants.

\[PV = nRT =k \]


In boyle's law we study how pressure and volume are related.

\[P_{1}V_{1} = P_{2}V_{2}\]