Q18 / 200 · WBJEE 2013 · Chemistry

A van der Waals' gas may behave ideally when

A
the volume is very low
B
the temperature is very high
Correct answer
C
the pressure is very low
D
the temperature, pressure and volume all are very high

Solution

At very low pressure, compressibility factor, $Z$ is approximatedly one. $\therefore$ van der Waals' gas may behave ideally

Hence, the correct answer is option: 'C'.

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