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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_(l)` (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 is `P_(0)` (Neglect surface tension).

When the gas bubble is at a height y from the bottom , its temperature is :-

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
Options (B) & (C) are wrong because the buoyancy force already includes force due to pressure of liquid. Hence only viscosity & gravity apply force.
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