An air bubble rises from the bottom of a pond 20m deep until it reaches the top of the pond. The graph below shows variation...

      

An air bubble rises from the bottom of a pond 20m deep until it reaches the top of the pond. The graph below shows variation of pressure exerted on the bubble with volume of the bubble.
5302019931.png
i) From the graph, determine the pressure exerted on the bubble and volume of bubble at
I. the bottom of the pond
II. the top of the pond
ii) Explain the shape of the graph.
iii) Determine the atmospheric pressure at the place of the experiment.
iv) Sketch in the space below the graph of pressure against reciprocal of pressure for the bubble.

  

Answers


sharon
i)I. 3 x 105Pa (from graph)
II) 1 x 105Pa (from graph)
ii) As bubble rises the total pressure exerted on the bubble reduces since PV is constant, increase in pressure
corresponds to decrease in volume
iii) Atmospheric pressure = pressure at the top of pond = 1 x 105Pa
5302019936.png
sharon kalunda answered the question on May 30, 2019 at 06:37


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