How are properties of gases different from that of liquids or solids?  What do you know about the relationship of volume and atmospheric pressure of gases? How are pressures and volumes related for a fixed amount of gas? |
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Question 1: If a 2.0 L balloon is filled with helium gas and is taken from Sacramento (atmospheric pressure of 1.0 atm) to Denver (0.85 atm of pressure), what would be the final volume of this balloon? |
How are properties of gases different from that of liquids or solids? What do you know about the relationship of volume and atmospheric pressure of gases? How are pressures and volumes related for a fixed amount of gas? |
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If 2.0 L of gas is at 1.0 atm, then at 0.85 atm, the volume should be... (somewhat larger than 2.0 L for sure). |
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(2.0 L) (1.0 atm) = (0.85 atm) ( V ) (2.0) (1.0) / (0.85) = 2.4 L |
Gases are readily compressible depending on the external pressure.
As the external atmospheric pressure decreases, the volume of the gas inside a balloon increases.
P1V1 = P2V2
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First,
try to answer the question on your own... |