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.
What means of specific volume?
Definition of specific volume : the volume per unit mass of a substance : the reciprocal of the density.
What is specific volume in physics?
Specific volume is a property of materials, defined as the number of cubic meters occupied by one kilogram of a particular substance. … 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.
What is specific volume example?
SubstanceDensitySpecific Volume(kg/m3)(m3/kg)Water (liquid)10000.00100Salt Water10300.00097Mercury135460.00007
What is the specific volume of steam?
Absolute pressureBoiling pointSpecific volume (steam)199.631.6941.1102.321.5491.2104.811.4281.3107.131.325
How do you calculate specific density?
Remember, finding the density involves dividing the mass by the volume. If the mass is 36 grams and the volume is 3 mililiters, then the density of the object is 12 grams per milliliter. That means that the specific gravity will be 12. That’s greater than one.
What is SG in fluids?
The specific gravity of a liquid is the relative weight of that liquid compared to an equal volume of water. The specific gravity of water is de facto 1. Liquids that are lighter than water have a specific gravity less than 1 and those heavier than water have a specific gravity greater than 1.
Is specific volume a state function?
The specific volume of a substance can be defined as the ratio of the substance’s volume to its mass. It does not depend on that path taken as it is measured for a state and not a route. So, it is a state function.
What is the reciprocal of 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.
How do you find volume in PV nRT?
For example, if you want to calculate the volume of 40 moles of a gas under a pressure of 1013 hPa and at a temperature of 250 K, the result will be equal to: V = nRT/p = 40 * 8.3144598 * 250 / 101300 = 0.82 m³ .
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How do I calculate specific weight?
Multiply the density by the acceleration of gravity (9.81) to calculate the specific weight. In our example, the specific weight is 840 x 9.81 = 8,240.4.
How do you find a specific volume on a psychrometric chart?
From the psychrometric chart we can find out the specific volume of the required air and find the total volume of the required air by multiplying it with the total weight of the air required. The constant specific lines start from the saturation curve and drop down with the slight angle to the vertical lines.
What is specific air volume?
Specific volume is defined as the total volume of dry air and water vapor mixture per kg of dry air (SI-units).
What is VF and VG in steam table?
vf = Specific volume of saturated water (liquid). vg = Specific volume of saturated steam (gas).
What is difference between volume and 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 is the specific heat of water?
specific heat, the quantity of heat required to raise the temperature of one gram of a substance by one Celsius degree. The units of specific heat are usually calories or joules per gram per Celsius degree. For example, the specific heat of water is 1 calorie (or 4.186 joules) per gram per Celsius degree.
What is SG of diesel?
Volumetric Weight For example, Diesel Fuel has an approximate SG (Specific Gravity) of 0.82, so it is lighter than water (SG =1.0) so to calculate the weight of diesel in the same sized storage tank, simply multiply the volume(litres) by the specific gravity (SG) of the fluid.
What is specific gravity answer?
The specific gravity of an object is the density of that object divided by the density of water. The density of water is 1,000 kilograms per meter cubed. For instance, the density of gold is 19,300 kilograms per meter cubed. So the specific gravity of gold is 19.3.
What is specific gravity used for?
ρobject / ρwater 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.
Is Specific Gravity same as density?
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).
How do you find the volume when given the mass and density?
The Density Calculator uses the formula p=m/V, or density (p) is equal to mass (m) divided by volume (V). The calculator can use any two of the values to calculate the third. Density is defined as mass per unit volume.
How do you find density from specific weight?
The specific weight of a fluid is defined as its weight per unit volume. Thus, specific weight is related to density through the equation γ = ρg where g is the local acceleration of gravity and ρ is density.
Is specific volume intensive or extensive?
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 is the specific weight of water?
A commonly used value is the specific weight of water on Earth at 4 °C (39 °F), which is 9.807 kilonewtons per cubic metre or 62.43 pounds-force per cubic foot.
How do you find volume with specific gravity and mass?
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.
Is h/ts a state function?
A state function is the property of the system whose value depends only on the initial and final state of the system and is independent of the path. … It is an extensive property. ∴ Gibbs energy (G) = H -TS. It is also a state function because it is independent of the path.
Is PV nRT in Pascals?
The units used in the ideal gas equation that PV = nRT are: P is pressure measured in Pascals. V is the volume measured in m. … T is the temperature measured in Kelvin.
What is 11th ideal gas?
Ideal gas is a hypothetical gas whose molecules occupy negligible space and have no interactions, and which consequently obeys the gas laws exactly. Or Ideal gas is gas which follows all the gas laws at all temperature and pressure.
What is the value for R?
Values of RUnits8.3144598 × 10-2L.bar.K-1.mol-18.3144598m3.Pa.K-1.mol-162.363577L.Torr.K-1.mol-11.9872036 × 10-3kcal.K-1.mol-1
What is meant by specific weight?
Definition of specific weight : the weight of a substance per unit volume in absolute units equal to the density multiplied by the acceleration of gravity.
What is humid volume formula?
In unit volume of humid gas, the mass mv of vapor of molecular weight Mv is given by: or. Similarly, the mass mG of dry gas of molecular weight MG is: Thus the humidity, H = mv/mG = pv/(p − pv) · Mv/MG. For the air water system, therefore H = pv/(p − pv) · 18/29 approximately.
