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At low pressure and high temperature, real gas nearly behave like ideal gas. Hence, deviation is minimum from ideal behaviour.

1. At high temperature and low pressure, the correction terms (an²/V²) and (nb) become negligible and thus, the deviation from ideal behaviour will be minimum.
2. PV = nRT or P = n / V RT = CRT.
3. Hence 1 = 1 × 0.082 × T. ∴ T = 1 / 0.082 = 12K.
4. At low temperature and high pressure.

Correct answer: At high temperature and low pressure, the correction terms (an²/V²) and (nb) become negligible and thus, the deviation from ideal behaviour will be minimum.

Solution

At high temperature and low pressure, the intermolecular forces and molecular volume become negligible, making the gas behave nearly ideally. This aligns with the correction terms in the van der Waals equation becoming insignificant.

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