Question

Derive the equation for combined gas. ​

Answer 1

Answer:

Derivation of the Combined Gas Law

The combined gas law is an amalgamation of the three previously known laws which are- Boyle’s law PV = K, Charles law V/T = K, and Gay-Lussac’s law P/T = K. Therefore, the formula of combined gas law is PV/T = K,

Where P = pressure, T = temperature, V = volume, K is constant.

One can adjust the formula for the combined gas law so as to compare two sets of conditions in one substance. In the equation, the figures for temperature (T), pressure (P), and volume (V) with subscripts of one are representative of the initial condition. Also, those with the subscripts of two are representative of the final condition.

P1V1/T1 = P2V2/T2

An important point to note is that the temperature should always be in kelvin for the purpose of calculation. So, if the units are available in the Celsius scale, then one must convert them to kelvin. Furthermore, the conversion to kelvin can easily be done by adding 273 to the particular unit.