A small air bubble is at the inner surface of | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) When the water is heated,the following changes occur:$1$. The saturated vapour pressure of water increases with temperature,which exerts more pres

Vedclass · Accepted Answer

All of the above

Vedclass · Answer

(D) When the water is heated,the following changes occur:$1$. The saturated vapour pressure of water increases with temperature,which exerts more pressure inside the bubble,causing it to expand.$2$. As the temperature increases,the kinetic energy of the air molecules inside the bubble increases,leading to an increase in their root mean square velocity,which increases the pressure exerted by the air on the bubble walls.$3$. The surface tension of water decreases as the temperature increases. Since the excess pressure inside a bubble is given by $P = 2T/r$,a decrease in surface tension $(T)$ allows the bubble to expand for a given internal pressure.Therefore,all the given factors contribute to the increase in the size of the bubble.

$A$ small air bubble is at the inner surface of the bottom of a beaker filled with cold water. Now,the water in the beaker is heated. The size of the bubble increases. The reason for this may be:

Similar Questions

$A$ drop of liquid of density $\rho$ is floating half-immersed in a liquid of density $d$. If $T$ is the surface tension,then the diameter of the drop is:

$A$ motor is used to deliver water at a certain rate through a given horizontal pipe. To deliver $n$-times the water through the same pipe in the same time,the power of the motor must be increased as follows:

Vedclass Test Series

Exam Paper Generator

Online Exam Module