The Combined Gas Law merges Boyle's, Charles's, and Gay-Lussac's laws into one equation, letting you track a gas as its pressure, volume, and temperature all change at once.
The Combined Gas Law merges Boyle's, Charles's, and Gay-Lussac's laws into one equation, letting you track a gas as its pressure, volume, and temperature all change at once. Fill in five of the six values to find the sixth.
A gas at 1 atm, 2 L, 280 K is compressed and heated to 3 atm, 250 K. Leaving V2 blank: V2 = (1×2×250)/(280×3) ≈ 0.595 L.
It merges Boyle's, Charles's, and Gay-Lussac's laws into one formula: (P1V1)/T1 = (P2V2)/T2, relating pressure, volume, and temperature of a fixed amount of gas.
When more than one variable (pressure, volume, temperature) changes at the same time, rather than just one while another stays fixed.
Yes — like the individual gas laws, the combined gas law requires absolute temperature (Kelvin) to work correctly.