The atmosphere of Uranus is composed of methane, which behaves in a non-ideal manner. Develop a function that describes pressure as a function of height on Uranus, where pressure is related to volume and temperature by the following equation of state: P = RT/((M/rho) - b) with b a constant that represents the molar volume of methane (4.306 x 10-5 m^3 /mol), P the pressure, R the universal gas constant, M the molecular weight of the gas, and rho the density.