Question

Which equation agrees with the ideal gas law?

Answer 1

`((P1)(V1))/(T1)=((P2)(V2))/(T2)` is directly related to the ideal gas law.

The ideal gas law states that:
`PV=nRT`. Rewriting this gives:
`(PV)/(T)=nR`. R is the universal gas constant, so its value is fixed. For a given sample, n is the number of moles of the gas, so its value would be fixed too. This means that the value of
`(PV)/(T)` would be a fixed constant as well. Therefore, whatever the initial value
`((P1)(V1))/(T1)` is, it should be equal to the final value
`((P2)(V2))/(T2)`.