Question

Write two factors on which the liquid pressure depends​

Answer 1

Answer:

Liquid pressure depends on two factors:

1. height of the liquid column.

2. density of the liquid.

Hope it helps.

Answer 2

Answer:

The liquid pressure is

• (a) directly proportional to the depth of liquid
• (b) directly proportional to the density of liquid
• (c) directly proportional to the acceleration due to gravity
• (d) It doesn't depend on the area of cross-section of containing vessel

Explanation:

◉LET'S EXPLORE MORE

✯What is liquid or Fluid pressure

Fluid pressure is the pressure at a point within a fluid arising due to the weight of the fluid.

The pressure in fluids can be calculated using the following relation.

$p _{fluid} \: p + pgh$

where,

• P = Pressure at the reference point

• Pfluid is the pressure at a point in a fluid

• ρ is the density of the fluid

• g is the acceleration due to gravity (considering earth g = 9.8 m/s)

• h is the height from the reference point

The density of the fluid can be calculated by dividing the mass of the fluid in consideration with the volume of fluid taken.

$ρ = m/v$

where,

• m is the mass of the fluid

• v is the volume of fluid considered

If the fluid is subject to atmospheric pressure than the total pressure on the system is given by

$p _{fluid} = p _{o} + pgh$

where,

Po is the atmospheric pressure

✯Conditions for the Consideration of Fluid Pressure:

Fluid pressure is considered in two conditions:

• In an open condition or open channel flow

• In a closed condition or closed conduit

• The fluid pressure given above is the static fluid pressure or hydrostatic pressure. The pressure here is considered based only on the depth of fluid because the pressure produced due to fluid movement can be considered negligible. The static fluid pressure does not depend on the surface area, the shape of the fluid container or total volume and mass of the liquid.

• Keep in mind that here, fluids refer to anything that has the ability to flow. Therefore, this refers to both liquids and gases.

✯Factors That Affect Fluid Pressure

There are two factors that affect fluid pressure. These two factors are the depth of the fluid and its density.

• Depth of the fluid: As the depth increases, the pressure exerted by the fluid becomes more.

• Density of the fluid: Denser fluids such as water exert more pressure than lighter fluids such as air. The molecules in the denser fluid are close to each other resulting in more collisions in the given area. This results in the exertion of more pressure.