Which of the following formulae is used to de | vedclass

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(B) The compressibility factor $(Z)$ is defined as the ratio of the actual molar volume of a gas $(V_m)$ to the molar volume of an ideal gas $(V_{idea

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$Z = \frac{PV}{nRT}$

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(B) The compressibility factor $(Z)$ is defined as the ratio of the actual molar volume of a gas $(V_m)$ to the molar volume of an ideal gas $(V_{ideal})$ at the same temperature and pressure.For an ideal gas,the equation of state is $PV = nRT$. Thus,$V_{ideal} = \frac{nRT}{P}$.The compressibility factor is given by the formula $Z = \frac{PV}{nRT}$.For an ideal gas,$Z = 1$. For real gases,$Z 
eq 1$,which indicates the deviation from ideal behavior.

Gas	$a$ value
$1. C_6H_{6(g)}$	$a. 0.217$
$2. C_6H_5CH_{3(g)}$	$b. 5.464$
$3. Ne_{(g)}$	$c. 18.000$
$4. H_2O_{(g)}$	$d. 24.060$

Which of the following formulae is used to determine the compressibility factor $(Z)$ for the measurement of deviation from ideal behavior?

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