Gauge Pressure of Balloon 25m Under Sea

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To determine the gauge pressure of a balloon 25 meters underwater, the atmospheric pressure of 101.3 kPa and the pressure increase due to water depth must be considered. The pressure underwater can be calculated using the formula that accounts for the density of seawater and gravitational force, which adds approximately 250 kPa at that depth. The gauge pressure is the difference between the total pressure at depth and the atmospheric pressure, resulting in a gauge pressure of around 148.7 kPa. The discussion emphasizes the importance of showing work and understanding the underlying physics concepts in solving such problems. Overall, a clear mathematical approach is necessary to arrive at the correct gauge pressure.
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Homework Statement



b) A spherical balloon is inflated to a diameter of 60.0 cm. Assuming that the gas in the balloon is of atmospheric pressure (101.3 kPa) and is at a temperature of 20.0 oC.
The above balloon is then taken by a diver 25.0 m under the sea. The temperature of the seawater at this depth is 11.0 oC.
What is the gauge pressure of the air in the balloon at this depth?

Homework Equations





The Attempt at a Solution


101300* 25??
 
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Show some more attempt.Answer without method is a man without identity.

>phy81x 9uru<
 
nice logic...all i know that the pressure under the sea is equal to inside the balloon
well u got any hint?
 
Last edited:
Show some attempt on the solution part.I am prohibited to solve the problem for ya(i would have loved to help a man in need:p). Show some mathematical concept.
 

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