Is Specific Weight Intensive or Extensive

While an extensive quantity is one whose magnitude is additive for subsystems according to IUPAC. Specific weight is an intensive property.

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Weight of a system mass acceleration due to gravity.

. It is an extensive property because if you divide the system into equal parts the weight density per unit volume specific weight of the system is halved. Weight and volume are both extensive properties. They include color melting point boiling point electrical conductivity and physical state at a given temperature.

For More Articles in Mechanical Engineering. M 3 kg or Lkg Molar volume. It is the inverse magnitude of the density.

Let us discuss in details. The specific weight also known as the unit weight is the weight per unit volume of a material. It is measured in units of volume by one unit of mass.

Although volume is an extensive property specific volume is an intensive property because it is volume V occupied by a unit of mass m of a material. If this doubles the property eg twice the mass twice as long its an extensive property. Extensive properties vary with the amount of the substance and include mass weight and volume.

Although the volume is an extensive property the specific volume is an intensive property because it is the volume occupied by a unit of mass of a material. Extensive properties are those whose values depend on the size or extent of the system. One easy way to tell whether a physical property is intensive or extensive is to take two identical samples of a substance and put them together.

γ specific weight w ordinary weight V volume of the substance or what is the same. So weight of system depends on mass and mass is an extensive property. Specific volume like anything that is specific is an intensive property.

If the property is unchanged by altering the sample size its an intensive property. They are bulk properties. M 3 or L.

Jkg Molar internal energy U m. The specific weight in SI units is. For example cubic meters per kilogram.

So weight of a system is extensive property. Is weight an intensive or extensive property. Often a source of confusion is that the terms specific gravity and less often specific weight are also used for relative density.

It is the inverse magnitude to the density. WIDTH is an Extensive Property. What are extensive and intensive properties give example.

A commonly used value is the specific weight of water on Earth at 4 C 39 F which is 9807 kilonewtons per cubic metre or 6243 pounds-force per cubic foot. The specific weight in Imperial units is. It is an extensive property because if you divide the system into equal parts the weight density per unit volume specific weight of the system is halved.

If we were to divide the system into smaller portions the weight of each portion would also be smaller. Is the specific weight an extensive or intensive property. The specific weight of a system is defined as the weight per unit volume note that this definition violates the normal specific property-naming convention.

γ w V mg V. Hence the weight is an extensive property. For example heat capacity is an extensive property.

Intensive properties in contrast do not depend on the amount of the substance. γ 1000 kgm 3 981 ms 2 9810 Nm 3 981 kNm3 The density of water is 1940 slugsft3 at 39 F 4 C. The calculation of it requires numerous other properties of the substance such as density mass and ordinary weight of the substance.

Fluid Friction and Surface Area. Density Temperature Boiling and melting points Malleability Ductility. Physical qualities of materials and systems are frequently classified as intensive or extensive based on how they change as the size or scope of the system changes.

Specific property is an intensive property obtained by dividing an extensive property by mass. Intensive properties are the ones that do not depend on the amount of matter that is present. Is the specific weight an extensive or intensive property.

Examples of extensive and intensive properties are mass and color respectively. Specific properties derived from extensive properties Extensive property Symbol SI units Intensive specific property Symbol SI units Intensive molar property Symbol SI units. The specific properties are always intensivethe specific properties like specific volume specific weight specific heat capacity specific internal energy etc.

Is the specific weight an extensive or intensive property. The specific weight of a system is defined as the weight per unit volume note that this definition violates the normal specific property-naming convention. Because of its value changes with changes of the mass.

The specific weight is considered as intensive property as this cannot change regardless of the amount of the material. γ 1940 slugsft 3 32174 fts 2 624 lbft3 Back to top. The specific weight of a system is defined as the weight per unit volume note that this definition violates the normal specific property-naming convention.

Introduction and Basic Concepts. When heat capacity is divided by mass we get a specific heat capacity which is an intensive property. Since specific weight is the ratio between the two this results to being a definitive characteristic of the quality of the material.

M 3 mol or Lmol Internal energy. Fundamentals of Thermal-Fluid Sciences with Student Resource CD 3rd Edition Edit edition Solutions for Chapter 2 Problem 6P. An intensive quantity is one whose magnitude is not dependent on the systems size.

This according to the following calculation formula in which the specific weight is represented by the symbol gamma γ. It is measured in units of volume times a unit. Opposite to intensive is the extensive property.

Compare this to volume which is extensive - its not in comparison to any unit anything. You are measuring how much volume per unit mass. Specific weight you are measuring the weight of a substance per unit weight of water.

An extensive property is one that depends on how much matter is present while an intensive property is one that does not depend on how much matter there is. Fluid Mechanics with Student Resources DVD 2nd Edition Edit edition Solutions for Chapter 2 Problem 1P.

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