Boyle's Law Calculator

This calculator will calculate the initial and final values of temperature and pressure by using the Boyle’s law equation.

To calculate:

Initial Volume (p₁):

Pa ▾

Initial pressure (V₁):

m³ ▾

Final volume (p₂):

Pa ▾

Related

This Boyle’s law calculator helps you determine different physical parameters like pressure, volume, and temperature of a gas in a closed container. It is an easy way to calculate changes in gas behavior under isothermal conditions.

What Is Boyle’s Law?

“At a constant temperature, the volume of a gas decreases as pressure increases, and increases as pressure decreases.”

Boyle’s Law Formula:

The Boyle’s law equation can be written as:

P₁ × V₁ = P₂ × V₂

Where:

P₁ = Initial pressure of the gas
V₁ = Initial volume of the gas
P₂ = Final pressure of the gas
V₂ = Final volume of the gas

Use this pressure-volume calculator to quickly determine gas behavior in a closed system.

Boyle’s Law Numerical Problems

Example #01:

Calculate the final pressure of a gas in a vessel with the following data:

P₁ = 34 Pa
V₁ = 2 m³
V₂ = 5 m³

Solution:

Using Boyle’s Law:

P₂ = (P₁ × V₁) ÷ V₂

Substitute the values:

P₂ = (34 × 2) ÷ 5

P₂ = 68 ÷ 5 = 13.6 Pa

Example #02 (New):

A gas has an initial pressure of 120 kPa and occupies a volume of 3 L. If the volume decreases to 1.5 L at constant temperature, calculate the final pressure.