Consider the following statements about real gases. (I) At low pressure, a real gas with strong attractions has Z 1 for every real gas because of the volume term

Question

Consider the following statements about real gases.

(I) At low pressure, a real gas with strong attractions has $Z < 1$ .

(II) At very high pressure, $Z > 1$ for every real gas because of the volume term b.

(III) At the same T and P, a gas with a larger b is more compressible than a gas with a smaller b.

Which of the statements are correct?

TestHub · Accepted Answer

(I) Attractions lower the pressure, so Z < 1 . True. (II) At very high pressure Z = 1 + b P / RT is greater than 1. True. (III) A larger b means the molecules take up more space, so the gas is less compressible (Z is larger). False. Answer: (B).

Chemistry - Real Gas Question with Solution | TestHub

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