Free Combined Gas Law Calculator
Calculate the final pressure, volume, or temperature of a gas when conditions change using the combined gas law P₁V₁/T₁ = P₂V₂/T₂.
atm
L
K
atm
K
Final Volume (V₂)
5.833 L
Final Volume (V₂) vs Initial Pressure (P₁)
Combined Gas Law
Formula
P₁V₁ / T₁ = P₂V₂ / T₂
Solving for V₂: V₂ = (P₁V₁T₂) / (T₁P₂)
This combines Boyle's law (P ∝ 1/V), Charles's law (V ∝ T), and Gay-Lussac's law (P ∝ T) into one equation for a fixed amount of gas.
Example Calculation
A gas at 1 atm, 10 L, 300 K is compressed to 2 atm and heated to 350 K.
- 01V₂ = (P₁V₁T₂) / (T₁P₂)
- 02V₂ = (1 × 10 × 350) / (300 × 2)
- 03V₂ = 3500 / 600
- 04V₂ = 5.833 L
Frequently Asked Questions
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