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- This problem is a graded problem. - The second virial coefficient for H2 at 273K is 13.7cm3mol1. 1. What is the molar volume, in L/mol, of hydrogen gas at 273K and 290atm as predicted by the ideal gas equation of state? 0.0773L/mol Computer's answer now shown above. You are correct. Your receipt no. is 158-3963 (2) 2. The measured volume, in L, of hydrogen gas at 273.K and 290atm is 0.092532L/mol. Calculate the compression factor for hydrogen at this pressure and temperature. Z=(PVreal)/(RT) or Z=Vreal/Videal. Tries 2/3 Previous Tries 3. The measured volume, in L, of hydrogen gas at 273.K and 290atm is 0.092532L/mol. Calculate the compression factor for hydrogen at this pressure and temperature using the virial equation. The virial equation is P=RT/V(1+B/V). Rearranging, we get PV/RT=1+B/V. So Z=1+B/V. Use V ideal. Be careful with units. Tries 1/3 Previous Tries