In the planet Mars, the average temperature is around -53^(@)C and atmospheric pressure is 0.9 kPa. Calculate the number of moles of the molecules in unit volume in the planet Mars? Is this greater than that in earth ?

In the planet Mars, the average temperature is around -53^(@)C and atm

1.	In the planet Mars, the average temperature is around -53^(@)C and atmospheric pressure is 0.9 kPa. Calculate the number of moles of the molecules in unit volume in the planet Mars? Is this greater than that in earth ?
Answer» Solution :`T=-53^(@)C=220K` `P=0.9xx10^(3)PA` `V=1m^(3)` `"NUMBER of molecules "mu=(VP)/(RT)=(0.9xx10^(3))/(8.314xx220)=0.00049xx10^(3), mu="0.49 MOL"`