The volume of an air bubble increases from the bottom to the top of a lake at constant temperature because
atmospheric pressure acts on the surface of the lake
pressure increases with depth
density remains constant with pressure
the bubble experiences an upthrust
Explanation
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Explanation:
Since the density of a gas in the bubble is less than that of water, it rises up. As it rises up, the pressure exerted by the water reduces. Hence, its volume increases, which means its radius will increase.
B. pressure increases with depth.
As an air bubble rises from the bottom to the top of a lake, it experiences a decrease in pressure due to the decrease in hydrostatic pressure with decreasing depth. This decrease in pressure causes the air inside the bubble to expand, leading to an increase in volume.
the answer ought to be B
I asked chat get and it wrote
The correct answer is:
A. Atmospheric pressure acts on the surface of the lake.
Explanation:
As the air bubble rises from the bottom to the top of the lake, the pressure surrounding it decreases because the total pressure at any depth is the sum of atmospheric pressure and the pressure due to the water column above it.
At greater depths, the pressure is higher due to the weight of the water above.
As the bubble moves upward, the surrounding water pressure decreases.
According to Boyle’s Law (for constant temperature), when pressure decreases, the volume of a gas increases.
Thus, the air bubble expands as it rises because the external pressure exerted by the water decreases.
