I recently visited the Children\'s Museum with my kids, and they had a really aw

Question

I recently visited the Children's Museum with my kids, and they had a really awesome display about pirates, sunken ships, and artifacts and treasure that had been salvaged from shipwrecks. When they bring these pieces to shore, like the canons, they do so by attaching balloons to them that are inflated under water, and they simply lift the artifacts to the surface. If one of those balloons contains 3.00 L of air that has a pressure of 36.74 psi, what is the gas volume (the volume of the balloon) once it floats to the surface?

Explanation / Answer

number of moles of gas and temperature are not changed. hence we can take

P1V1 = P2 V2

36.74psi * 3 L = 14.696 psi * V2 (atmospheric pressure at sea level = 14.696 psi)

V2 = 7.5 L

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