What Factors Affect Absolute Pressure at Lake Depths?

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The discussion focuses on calculating the absolute pressure at a lake's maximum depth of 35 meters, given a barometric pressure of 598 mmHg and a specific weight of water at 10°C. The formula used for the calculation is Pabs = Ps + Density * specific weight * Height. Initial calculations mistakenly used a depth of 10 meters, but were corrected to 35 meters, leading to a revised absolute pressure of 343 x 10^6 Pascals. Participants confirm that the final calculation is on the right track.
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Homework Statement



Calculate Absolute Pressure?
(1) A Lake has average temperature of 10°C and a maximum depth of 35m. The barometric pressure at the lake is 598mmHg. At the deepest part of the lake, determine the absolute pressure in Pascals. Specific weight of the water in the lake 10degreeC is 9.804Kn/m 3


Homework Equations



Pabs = Ps + Density * specific weight * Height

The Attempt at a Solution



598 mmHg = 79.72 KPA

79.72 * 103 PA + ( 1000 kg/m3 * 9.804 * 103 pa/m3 *10 mt)

Pabs = 98 * 106 PA
 
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Welcome to PF!

Hi Macca1986! Welcome to PF! :smile:
Macca1986 said:
79.72 * 103 PA + ( 1000 kg/m3 * 9.804 * 103 pa/m3 *10 mt)

erm :redface: …

35 metres! :rolleyes:​
 
Thanks for the help, silly mistake! :rolleyes:

79.72 * 103 + (1000 * 9.804 * 103 * 35)

=343 * 106 PA

am on the right track?
 
(just got up :zzz:)

looks good! :smile:
 

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