Pressure within a liquid depends only on
the density of the liquid, the acceleration due to gravity, and the depth within the liquid
. The pressure exerted by such a static liquid increases linearly with increasing depth.
What are the affecting factors of pressure and how they affect pressure?
Summary.
An increase in the number of gas molecules in the same volume container increases pressure
. A decrease in container volume increases gas pressure. An increase in temperature of a gas in a rigid container increases the pressure.
What are the factors of liquids?
Flow patterns in a fluid (gas or liquid) depend on three factors: the characteristics of the fluid, the speed of flow, and the shape of the solid surface. Three characteristics of the fluid are of special importance:
viscosity, density, and compressibility
.
What are the two factors influencing liquid pressure?
Two factors influence the pressure of fluids. They are
the depth of the fluid and its density
. A fluid exerts more pressure at greater depths. Deeper in a fluid, all of the fluid above it results in more weight pressing down.
What are the three factors that affect the liquid pressure?
- Density of liquid (ρ)
- Depth of liquid (h)
- Acceleration due to gravity (g)
What are two factors affecting pressure class 8?
- The thrust.
- The area on which the thrust is applied.
- Larger the area on which a thrust acts, less is the pressure exerted by it.
- Larger the thrust acting on an area more is the pressure exerted on it.
What is pressure What does pressure depend on class 8?
Answer: Pressure is force unit per area. Pressure depends on two factors:
The magnitude of force applied
– the greater the force, the greater is its effect. The area over which the force is applied, i.e. the area of contact between the two objects.
What is the value for pressure at STP?
Standard temperature and pressure (STP) is defined as exactly
100 kPa of pressure (0.986 atm)
and 273 K (0°C).
Figure 9.14 The relationship between pressure and
volume is inversely proportional
. … It is summarized in the statement now known as Boyle’s law: The volume of a given amount of gas held at constant temperature is inversely proportional to the pressure under which it is measured.
What are the 5 factors affecting solubility?
- Temperature. Basically, solubility increases with temperature. …
- Polarity. In most cases solutes dissolve in solvents that have a similar polarity. …
- Pressure. Solid and liquid solutes. …
- Molecular size. …
- Stirring increases the speed of dissolving.
What are 3 characteristics of fluids?
Fluids have common properties that they share, such as
compressibility, density, pressure, buoyancy and viscosity
. However, just because fluids share similar characteristics doesn’t mean the specifics of those characteristics are the same for each material.
What are the characteristics of liquid pressure?
- Liquid pressure increases with depth.
- Liquid pressure remains the same in all directions at a given depth.
- Liquid pressure depends upon the density of the liquid.
- Liquid exerts pressure on the sides of the container.
- A liquid seeks its own level.
What is the difference between liquid pressure and atmospheric pressure?
Air pressure or atmospheric pressure is the pressure as the force exerted by the collisions of particles in the air. The key difference between air pressure and liquid pressure is that
air pressure allows the gaseous state of matter to be compressible
, whereas liquid pressure makes a liquid incompressible.
What is a pressure class 8?
The force acting on per unit area of a surface
is called pressure. We can say force per unit area is called pressure.
Why is water not used as a barometric liquid?
Water is not a suitable barometric liquid because: (i)
The vapour pressure of water is high, so its vapours in the vacuum space will make the reading inaccurate
. (ii) Water sticks with the glass tube and wets it, so the reading becomes inaccurate.
How does pressure depend on area?
pressure= force/area
A solid resting on a horizontal surface exerts a normal contact force equals to its weight. The pressure of the solid on the surface depends on the area of contact. (b) the area of contact between the two surfaces. The greater the force or the smaller the area the greater the pressure.
