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Lesson: Chapter 15 — Fluid Pressure and Its Applications

15.4. Gas and atmospheric pressure 1 of 8

Question 1

What are the two ways in which a gas can produce a pressure?

The right answer is the one marked above.

From the weight of a column of gas, and from a compressed gas trying to expand. The first gives rise to atmospheric pressure; the second to the pressure in a balloon or a tyre.

Choosing only one of them leaves out the other. Temperature does affect pressure, but it is not one of the two ways set out in the text.

Answer the question to continue.