The compressibility factor for definite amount of van der Waals' gas at \[0{}^\circ C\]and 100 atm is found to be 0.5. Assuming the volume of gas molecules negligible, the van der Waals' constant a for a gas is

0.256 \[{{L}^{2}}mo{{l}^{-2}}atm\]

1.256 \[{{L}^{2}}mo{{l}^{-2}}atm\]

2.256 \[{{L}^{2}}mo{{l}^{-2}}atm\]

0.0256 \[{{L}^{2}}mo{{l}^{-2}}atm\]

The compressibility factor for definite amount of van der Waals' gas a

1.	The compressibility factor for definite amount of van der Waals' gas at \[0{}^\circ C\]and 100 atm is found to be 0.5. Assuming the volume of gas molecules negligible, the van der Waals' constant a for a gas is
A.	1.256 \[{{L}^{2}}mo{{l}^{-2}}atm\]
B.	0.256 \[{{L}^{2}}mo{{l}^{-2}}atm\]
C.	2.256 \[{{L}^{2}}mo{{l}^{-2}}atm\]
D.	0.0256 \[{{L}^{2}}mo{{l}^{-2}}atm\]
Answer» B. 0.256 \[{{L}^{2}}mo{{l}^{-2}}atm\]

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The compressibility factor for definite amount of van der Waals' gas at \[0{}^\circ C\]and 100 atm is found to be 0.5. Assuming the volume of gas molecules negligible, the van der Waals' constant a for a gas is

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