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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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dacia79 dacia79
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10 years ago

A sample of an ideal gas at 1.00 atm and a volume of 1.68 L was placed in a weighted balloon and dropped into the ocean. As the sample descended, the water pressure compressed the balloon and reduced its volume. When the pressure had increased to 75.0 atm, what was the volume of the sample? Assume that the temperature was held constant.  Thank you. 
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10 years ago
We have P*V=nRT. In our case, n (the quantity of the gas) and T are fixed, while R is a fixed constant. So, we can say that

P*V=constant.

At the beginning we have P1*V1=1*1,68=1,68. P*V remains constant, so:
at the end we have: P2*V2=1,68 <=> 75*V2=1,68 <=> V2=0,0224L
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