Why is concave side pressure higher than convex side?

Why is concave side pressure higher than convex side?

If the pressure goes up, it will bulge out more. If you push from the other side, it will bulge this way instead. The pressure will always be higher on the concave side because it has to move away to cancel out the pressure force pushing it.

Why is there excessive pressure on the concave side of meniscus?

liquid molecules will be in equilibrium, ifexcess of pressure is on the concave side in the upward direction. This excess pressure balances the resultant force due to surface tension. Hence, there is always an excess of pressure on the concave side of the meniscus of a liquid.

Which side of meniscus has higher pressure?

On the concave meniscus, pressure is more because of surface tension. Concave meniscus is formed as a result of water creeping up on the surface of the sides of the container.

When the free surface of liquid is concave the pressure on concave side is compared to pressure on convex side?

The pressure on the concave side is greater than the pressure on the convex side. If there is an air bubble inside the liquid as shown in the figure, is single surface is formed. There is air on the concave side and liquid on the convex side.

Why do we say that there is always an excess pressure on the concave side of the meniscus of a liquid obtain the expression for the excess pressure inside a liquid drop?

There are two forces involved in capillary action which dictate the curvature of the meniscus. 2. The cohesion of water which glues the surface of the water together as in raindrops. So the shape of the meniscus is the balance, basically, of these two forces.

On which side of a liquid surface pressure is more?

Answer: The pressure on the concave side is greater than the pressure on the convex side.

What is concave and convex meniscus?

A concave meniscus, which is what you normally will see, occurs when the molecules of the liquid are attracted to those of the container. This occurs with water and a glass tube. A convex meniscus occurs when the molecules have a stronger attraction to each other than to the container, as with mercury and glass.

On which side of the liquid surface is pressure less?

What is excess pressure?

The Reservoir-wave hypothesis states that it is convenient to separate the arterial pressure into a reservoir pressure, that accounts for the energy stored by the elastic walls of the arterial system during systole and released during diastole, and an excess pressure, defined as the difference between the measured …

Why there is excess pressure inside a liquid bubble find the expression for excess of pressure inside a liquid bubble?

1) Excess of pressure inside air bubble in a liquid. Consider an air bubble of radius R inside a liquid having surface tension T as shown in Figure 7.28 (a). Let P1 and P2 be the pressures outside and inside the air bubble, respectively. Now, the excess pressure inside the air bubble is ΔP = P1 − P2.

On which side of the liquid surface is the pressure less?

Answer: The pressure will always be higher on the concave side because it has to move away to cancel out the pressure force pushing it. It’s the reason a clothesline hangs down.

Why is there an excess of pressure on the concave side?

Thus, there is always excess of pressure on the concave side of a curved liquid surface over the pressure on its convex side due to surface tension. A raindrop of diameter 4 mm is about to fall on the ground. Calculate the pressure inside the raindrop. Surface tension of water = 0.072 N/m. Atmospheric pressure = 1.013 x 105 N/m².

What happens to surface tension when a liquid surface is curved?

In case 2 and 3 we can see that, when liquid surface is curved, the surface tension give rises to a pressure which is directed towards the centre of curvature of the surface, to balance this there is excess pressure acting on the surface.

What is the difference between convex and concave surface?

The pressure inside the surface is greater than the pressure outside the surface. The pressure on the concave side is greater than the pressure on the convex side. If there is an air bubble inside the liquid as shown in the figure, is single surface is formed. There is air on the concave side and liquid on the convex side.

What causes the rise and fall of liquid in capillary tube?

Rise and fall of liquid in a capillary tube can be explained by knowing the fact that a pressure difference exists across a curved free surface of the liquid. In this case, the surface tension is horizontal and hence has no normal component to the horizontal surface. Due to which there is no extra pressure on outside or inside.