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A submerged scuba diver, 11 m below the surface of the water, blows a bubble of air from the valve of her tank. The final volume of the bubble is 3.7 cm3, and the temperature of the air is that of the water, 15°C. Assume that the temperature of the air in the bubble remains equal to the water temperature. The pressure in the tank is very high, so the initial volume of the air is negligible compared with the final volume at the bubble.
Calculate how much heat the bubble absorbs as it forms. Calculate how much work the bubble does on the surrounding water.
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