How is gas pressure changed?

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How is gas pressure changed?

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Answer 1 · 2018-04-27T16:09:07

Gas pressure is changed when a variable in the Ideal Gas Law equation is changed.

Explanation:

Any gas can be described with the Ideal Gas Law equation, $P V = n R T$ $PV = nRT$ , with $P$ $P$ representing pressure, $V$ $V$ representing volume, $n$ $n$ representing the number of gaseous moles, $R$ $R$ representing the ideal gas constant, and $T$ $T$ representing temperature.

Since $P$ $P$ is on the same side of the equation as $V$ $V$ , the two variables are inversely related, and pressure will decrease as volume increases and vice versa.

Since $P$ $P$ is on the opposite side of the equation as $n$ $n$ and $T$ $T$ , it is directly related to those variables, and pressure will increase as either the number of gaseous moles or temperature increases and decrease as those variables decrease.

(Note that $R$ $R$ is a constant and cannot change)

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How is gas pressure changed?

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