Combined Gas Law Calculator
Calculate the changing state of a gas combining Boyle's, Charles's, and Gay-Lussac's Laws.
Initial State (1)
Any Pressure Unit
Any Volume Unit
Celsius (°C)
Final State (2)
Same unit as P1
Same unit as V1
Celsius (°C)
Result
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Combined Gas Law Formula
The Combined Gas Law combines Boyle's Law, Charles's Law, and Gay-Lussac's Law into one mathematical expression:
$$ \frac{P_1 V_1}{T_1} = \frac{P_2 V_2}{T_2} $$
- P: Pressure (must use consistent units)
- V: Volume (must use consistent units)
- T: Absolute Temperature (Kelvin)
The amount of gas (moles) is assumed constant.