Thread: Equation of state View Single Post
 P: 5,462 Since you know PV= RT where R is the gas constant, with P, V and T variables, you know that $$\frac{{PV}}{T} = R = {\rm{a}}\;{\rm{constant}}$$ We can rearrange this $$\left( {\frac{{PV}}{T} - R} \right) = {\rm{0}}$$ Isn't this now in the format you seek? However noting your other threads about Van der Waal's equation I wonder if your book was leading up to some more complicated function of P, V and T such as VDW. Incidentally the answer to your question about P, is that P is the real pressure exerted by the gas, not some equivalent pressure of an ideal or other gas.