At a given temperature and pressure, the one which shows marked deviation from ideal behavior is
Correct answer: C. CO2
- A. N2
- B. N3
- C. CO2
- D. He
Explanation
The gas with higher intermolecular forces has the most marked deviation, as one of the assumptions of an ideal gas is that ideal gases have negligible forces of attraction.CO2 is above all intermolecular forces in all of the above hence is our answer.
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About Real and Ideal Gases
An ideal gas is modelled as particles with negligible volume and no intermolecular attraction, obeying Boyle's, Charles's and Avogadro's laws through PV = nRT. Real gases deviate from this behaviour, especially at high pressure and low temperature, because particle volume and attractive forces matter; the van der Waals equation explains these corrections.
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