Another Bubble rises in a lake contributing to global warming.
An air bubble with radius 5.0 mm filled with methane rises from the bottom of a lake 20.7 m deep. The temperature at the bottom of the lake is 7 °C and the temperature at the surface is 27 °C. The atmospheric pressure is 100 kPa.
What is the radius of the bubble at the surface of the lake (in mm)?
The answer is 7.4.
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