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A small spherical monoatomic ideal gas b...

A small spherical monoatomic ideal gas bubble `(gamma=5//3)` is trapped inside a liquid of density `rho` (see figure). Assume that the bubble does not exchange any heat with the liquid. The bubble contains n moles of gas. The temperature of the gas when the bubble is at the bottom is `T_0`, the height of the liquid is H and the atmospheric pressure `P_0` (Neglect surface tension).

As the bubble moves upwards, besides the buoyancy force the following forces are acting on it

A

only the force of gravity

B

The force due to gravity and the force due to the pressure of the liquid

C

The force due to gravity, the force due to the pressure of the liquid and the force due to viscosity of the liquid

D

The force due to gravity and the force due to viscosity of the liquid

Text Solution

Verified by Experts

The correct Answer is:
D
As the bubble moves upwards besides the buoyancy force (cause of which is pressure difference) only force of gravity and force of viscosity will act.
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