Gauge presssure

1. Jun 16, 2008

suppy123

1. The problem statement, all variables and given/known data

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?

2. Relevant equations

3. The attempt at a solution
101300* 25??

2. Jun 16, 2008

physixguru

Show some more attempt.Answer without method is a man without identity.

>phy81x 9uru<

3. Jun 16, 2008

suppy123

nice logic...all i know that the pressure under the sea is equal to inside the balloon
well u got any hint?

Last edited: Jun 16, 2008
4. Jun 17, 2008

physixguru

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.