Extended tier only A whale takes a breath at the surface of the ocean, where the pressure…
Physics · IGCSE · Cambridge (CIE) — Thermal physics
Extended tier only
A whale takes a breath at the surface of the ocean, where the pressure is 1.00 x 105 Pa. It then dives to a depth where the pressure is 1.21 x 105 Pa. The temperature is the same at this depth as it is at the surface.
The whale lets out a bubble of air of volume 50 cm3. This bubble rises to the surface of the ocean.
What is the volume of the bubble when it reaches the surface?
41.3 cm3
60.5 cm3
50.0 cm3
21.0 cm3
Answer
(B) 60.5 cm 3
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