** This is the TEXT ONLY version for the Gas Laws tutorial.**

QUESTIONS:

Easy 1 - Easy 2 - Easy 3 - Easy 4

Medium 1 - Medium 2 - Medium 3 - Medium 4

Hard 1 - Hard 2 - Hard 3

Easy 1:

If 2.0 L of gas is taken from 1.0 atm to 0.75 atm of pressure, what is the resulting volume of the gas?

[ hint1 hint2 hint3 initialsteps stepbystep] [try other questions]

Hint 1:

What do you remember about properties of gases?

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Hint 1A:

Gases can be compressible depending on the external pressure.

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Hint 2:

What do you know about the relationship of volume and atmospheric pressure of gases?

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Hint 2A:

As the external atmospheric pressure decreases, the volume of the gas inside a balloon increases.

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Hint 3:

Do you know a formula that relates Pressure to volumes for a fixed amount of gas?

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Hint 3A:

P₁V₁ = P₂V₂

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Initial Steps:

If 2.0 L of gas is at 1.0 atm, then at 0.75 atm, the volume should be... (somewhat larger than 2.0 L for sure).

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Step by Step:

At scenario 1 (which is at 1.0 atm), the volume of the gas is 2.0 L. At scenario 2 (which is at 0.75 atm), the volume of the gas is found by the relationship, P₁V₁ = P₂V₂. Thus,

(2.0 L) (1.0 atm) = (0.75 atm) ( V )

(2.0) (1.0) / (0.75) = 2.7 L

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