What does specific volume mean?
Specific volume is a property of materials, defined as the number of cubic meters occupied by one kilogram of a particular substance. The standard unit is the meter cubed per kilogram (m 3 /kg or m 3 · kg -1 ).
What is difference between volume and specific volume?
Summary – Volume vs Specific Volume
Volume is a thermodynamic property of a substance. Specific volume is the volume of a unit mass of a substance. The difference between volume and specific volume is that volume is an extensive property whereas specific volume is an intensive property.
What does specific volume depend on?
Specific volume is inversely proportional to density. If the density of a substance doubles, its specific volume, as expressed in the same base units, is cut in half. If the density drops to 1/10 its former value, the specific volume, as expressed in the same base units, increases by a factor of 10.
What is specific volume in fluid mechanics?
The specific volume is the reciprocal of the density of the material, which is the mass per unit volume: r = (1/v) = (m/V). The “Specific Gravity” of a substance is the ratio of its mass to that of an equal volume of water at the same temperature and pressure.
What is the difference between density and specific volume?
The specific volume of a substance is defined as the volume per unit mass. Typically specific volume uses the symbol v. The density of a substance is defined as the mass per unit volume, and it is therefore the reciprocal of the specific volume. Density is designated by the symbol ρ.
How do you measure specific volume?
To calculate specific volume you need to know the volume (V) and the mass (m). Specific volume equals volume divided by mass. Typically, volume is measured in cubic meters (m3), and mass is measured in kilograms. Specific volume is then calculated as volume divided by mass.
Is specific volume the same as density?
The specific volume of a substance is defined as the volume per unit mass. Typically specific volume uses the symbol v. The density of a substance is defined as the mass per unit volume, and it is therefore the reciprocal of the specific volume.
Why is specific volume an intensive property?
Specific volume is an intensive property of the gas, as shown in our example. The specific volume of the original tank is the same as the specific volume in each half. The “specific” of specific volume simply means “divided by mass”.
What property is a specific volume?
Does pressure affect specific volume?
As we increases pressure, specific volume of saturated liquid is larger and specific volume of saturated vapor smaller.
Why do we use specific gravity?
Specific Gravity is an Important Property
Note that specific gravity has no units because it is the ratio of two density numbers. It is important that the temperature and pressure of each substance is the same so that the density values represent the properties under the same conditions.
What is the difference between specific volume and density?
How do you calculate specific volume?
The specific volume equation that is used for solids and liquids is basically volume divided by mass v=V/m v = V / m or the reciprocal of density v=1/ρ v = 1 / ρ . The ideal gas law is used to calculate the specific volume of gases under ideal conditions.
Why do we use specific gravity instead of density?
Density and Specific Gravity are never the same, because Density has units and Specific Gravity is dimensionless, but they are numerically equal when three conditions are met: (1) Density is measured in grams per cubic centimeter, grams per milliliter, or kilograms per liter; (2) Density and Specific Gravity are …
What is the difference between gravity and specific gravity?
If a material has a specific gravity less than 1, it will float on water. And it is represented in kilograms per cubic metre.
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Difference Between Specific Gravity and Density.
| Difference Between Density and Specific Gravity | |
|---|---|
| Density | Specific Gravity (Relative Density) |
| It is represented in absolute term. | It is represented in relative term. |
What is the difference between density and specific?
Density is defined as mass per unit volume. It has the SI unit kg m-3 or kg/m3 and is an absolute quantity. Specific gravity is the ratio of a material’s density with that of water at 4 °C (where it is most dense and is taken to have the value 999.974 kg m-3). It is therefore a relative quantity with no units.
What is the purpose of specific gravity?
The specific gravity value of an object can be used to determine approximately where the object will float at the surface of the liquid. The SG is a percentage of an object’s volume that will be below the surface, and the remaining percentage is visible above.
What are two uses of specific gravity?
Specific gravity has many other applications: gemologists use it to distinguish similar gems; chemists, to check on the progress of reactions and the concentration of solutions; and auto mechanics, to test battery fluid and antifreeze.
Why specific gravity is required?
When it comes to configuring a mixer, knowing the specific gravity of the fluids being blended is important because it will influence the torque & horsepower that is required to properly mix your fluid. In applications with higher specific gravity, more torque would be required to produce the desired result.