Boyle's Law (P1V1 = P2V2)Chemistry
Boyle's Law Gas Pressure & Volume Calculator (P1V1 = P2V2)
Calculate final gas volume (V2) or pressure (P2) during isothermal expansion and compression according to Boyle's ideal gas relationship.
Calculated Result
Final Gas Volume (V2)
4L
Calculator Inputs
Quick select:
Quick select:
Quick select:
Final Gas Volume (V2)
4L
Boyle Constant (P * V = k)
10 atm·L
Volume Change Ratio (V2 / V1)
0.4 -
Isothermal Compression: Increased pressure strictly contracts the gas volume inversely.
Initial vs Final Gas Volume
Initial Vol V1
10 L(71%)
Final Vol V2
4 L(29%)
Standard gas law and thermodynamics tool for isothermal closed-system gas behavior.
Calculation Methodology
Boyle's Law: P1 * V1 = P2 * V2 at constant temperature and moles. Final Volume V2 = (P1 * V1) / P2. Pressure and volume are strictly inversely proportional.
Frequently Asked Questions
Compressing a fixed number of gas molecules into half the volume doubles their collision frequency against the container walls, exactly doubling the measured pressure.
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