What is the combined gas law? When is it useful?
Here, we are going to discuss the combined gas law.
Boyle’s law, Charles’s law and Gay-Lussac’s law together forms the combined gas law. It states that pressure(P) is inversely proportional to volume(V) and directly proportional to the absolute temperature(T).
Mathematically, if temperature, volume and pressure of a fixed amount of gas vary from T1, V1 and P1 to T2, V2 and P2, then we can write:
(P1V1) / T1 = (P2V2) / T2