Particulate Nature of Matter B.3 Ideal Gas Model (id: 3157fb5ef)

本题目来源于试卷: Particulate Nature of Matter B.3 Ideal Gas Model，类别为 IB物理学

[单选题]
Gas System A contains non-interacting molecules of negligible size at pressure $P$, whilst Gas Systems B and C contain large, strongly interacting molecules at pressures $10P$ and ​$\frac{P}{2}$, respectively.


Which line of the table correctly describes how closely the three systems resemble an ideal gas?

Most like ideal gasSecond most like ideal gasLeast like ideal gas

A. System A System B System C
B. System A System C System B
C. System B System A System C
D. System C System A System B


参考答案:  B


本题详细解析:
Explanation:

In an ideal gas system, it is assumed that molecules have negligible size and that there are no intermolecular forces. System A most resembles an ideal gas because it satisfies these criteria.

Whilst Systems B and C both contain molecules of significant size with strong intermolecular forces, System B is most likely to exhibit non-ideal gas characteristics due to the relatively high gas pressure, which corresponds to greater proximity between the molecules: a decreased intermolecular distance yields increased intermolecular forces, as well as enhancing the influence of non-negligible molecular size (the total molecular volume constitutes a greater percentage of the container volume).

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