2. All real gases deviate to some extent from the behavior of ideal gases. At st
ID: 1037203 • Letter: 2
Question
2. All real gases deviate to some extent from the behavior of ideal gases. At standard conditions, t gas is 0.0014290 g/mL, that of H2 gas is 0.00008988 g/mL, and that of CO2 is 0.0019769 gm ng these values and the molecular weights from your textbook (in g/mol, not rounded off), calculate the molar volume of each of these, in mL/mol, to five significant figures. (Hint: analyze the units for density, molecular weight, and molar volume.) 2d) The molar volume of an ideal gas is 22414 mL/mol. Based on the previous three calculations, which of the previous gases has its molar volume deviate the most from that of an ideal gas? uuinh oftha following gasses would have the lowest dens lowing assss would have the lowest density under room conditions (i.e., approximately 25°CExplanation / Answer
2. Since density is = (mass/volume) unit;
Therefore, molar volume= (molar mass/density) unit.
Now, from the textbook, you can find,
The molecular weight of O2 is 31.998 g/mol
The molecular weight of H2 is 2.01588 g/mol
The molecular weight of CO2 is 44.01 g/mol
So, Molar volume of O2 is = (31.998 g/mol / 0.0014290 g/ml) = 22391.88244 ml/mol
And Molar volume of H2 is = (2.01588 g/mol / 0.00008988 g/ml) = 22428.57143 ml/mol
And Molar volume of CO2 is = (44.01 g/mol / 0.0019769 g/ml) = 22262.12757 ml/mol
2d) Molar volume of ideal gases in standard condition is 22414 ml/mol.
So deviation of above gases from ideal gas is as follows,
For O2 is = (22414 - 22391.88244) ml/mol = 22.11756 ml/mol
for H2 is = (22428.57143 - 22414) ml/mol = 14.57143 ml/mol
for CO2 is = (22414 - 22262.12757) ml/mol = 151.87243 ml/mol
So, most deviated gas is CO2 from ideal behavior.
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