Calculate the pressure exerted by one mole of CO2 gas at 273 K if the van der Waals' constant a = 3.592 dm6 atm mol-2. Assume that the volume occupied by CO2 molecules is negligible.
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a
1 atm
b
2 atm
c
3 atm
d
4 atm
answer is A.
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Detailed Solution
In case of negligible morecular volume, b = 0 and van der Waals' equation reduces top+n2aV2V=nRT,p=RTV−aV2(n=1 mole ) =0.082×27322.4−3.592(22.4)2=0.99atm≈1atm
Calculate the pressure exerted by one mole of CO2 gas at 273 K if the van der Waals' constant a = 3.592 dm6 atm mol-2. Assume that the volume occupied by CO2 molecules is negligible.