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Which of the following statements is true concerning real gases?

Which of the following statements is true concerning real gases?

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A. The observed pressure will be less than the ideal pressure, and the volume available for the gas particles is less than the volume of the container.
B. The observed pressure will be less than the ideal pressure, and the volume available for the gas particles is greater than the volume of the container.
C. The observed pressure will be greater than the ideal pressure, and the volume available for the gas particles is greater than the volume of the container.
D. The observed pressure will be greater than the ideal pressure, and the volume available for thee gas particles is less than the volume of the container.

This question is part of Chemical Reaction Test 2
Asked by Ameier, Last updated: Jul 06, 2020

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2 Answers

k.Paul

K.Paul

Answered Dec 11, 2017

From the given choices, the correct answer is letter A or the observed pressure will be less than the ideal pressure, and the volume available for the gas particles is less than the volume of the container. Initially, of course, it was thought that real gasses follow the law of ideal gasses, but it was proven incorrect by Dutch scientist Johannes Diderik van der Waals. He observed that there is an amount of intermolecular force of attraction between gas molecules.

These forces are then named Van der Waal forces. In here, the forces don’t let the molecules hit the wall of a container with full force because it is being held back by attractive forces. With this, real gasses then tend to have slightly lower pressure compare to that of ideal gasses.

 

John Smith

John Smith

Answered Apr 18, 2017

The observed pressure will be less than the ideal pressure, and the volume available for the gas particles is less than the volume of the container.
 

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