Calculate the density of the atmosphere at the surface of Mars (where the pressu

Question

Calculate the density of the atmosphere at the surface of Mars (where the pressure is 650 Pa and the temperature is typically 253 K, with a CO2 atmosphere), Venus (with an average temperature of 730 K and pressure of 92.0 atm, with a CO2 atmosphere), and Saturn's moon Titan (where the pressure is 1.50 atm and the temperature is -178 degrees Celsius C, with a N2 atmosphere. Consult the periodic chart to determine molar masses. (the molar mass for CO2 is 44.01 g/mol and the molar mass for N2 is 28.02 g/mol)

Part A. PMars = ______kg/m^3

Part B. PVenus = ______kg/m^3

Part C. PTitan = ______ Kg/m^3

Part D. Compare each of these densities with that of the Earth's atmosphere.

I really appreciate your help. Thankyou!

Explanation / Answer

PV = nRT => Density= D= nM/V where M is molar mass V= nM/D, PnM/D = nRT => PM/RT =D Density of Mars = 650*44*10^-3 / 253* 8.314 = 0.0136 Density of Venus = 92*10^5*1.013*44 *10^-3 / 730*8.314 = 67.564 Density of Titan = 1.5 *1.013*10^5*28*10^-3 / 95*8.314 = 5.387 Density of Earth's Atmosphere= 1.2 kg/m^3

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