Specific Volume of Boiling Liquid

In summary, the specific volume of a liquid decreases as pressure increases at saturation temperature due to the fact that liquids are less compressible than gases. This is because liquid density decreases with temperature, which is caused by atomic vibration and reduced interatomic/intermolecular forces. In contrast, gases are simply compressed as pressure increases, resulting in a decrease in specific volume. Similarly, in solids, as temperature increases, yield strength and ultimate tensile strength decrease, and Young's modulus decreases. This is due to the increase in thermal expansion and lattice parameter with temperature.
  • #1
Ali Asadullah
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Why the specific volume of a liquid decreases with the increase in pressure at saturation temperature and why the specific volumes of vapor at saturation temperature decreases with increasing pressure??
 
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  • #2
Liquids are less compressible than gases. Liquid density decreases (specific volume increases) with temperature (thermal expansion), which is related to atomic vibration (and reduced interatomic/intermolecular forces). Gases are simply compressed as pressure increases, so specific volume decreases (density increases) as gas is compressed.

Similarly in solids, as temperature increases, yield strength and ultimate tensile strength decrease, and Young's modulus decreases. Thermal expansion and lattice parameter increase with temperature.

http://www.engineeringtoolbox.com/young-modulus-d_773.html
 
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  • #3
My dear please explain the part about liquids.
Thank You
 

1. What is specific volume of boiling liquid?

The specific volume of boiling liquid is the volume occupied by one unit mass of the liquid at a specific temperature and pressure. It is typically measured in units of cubic meters per kilogram (m^3/kg).

2. How is specific volume of boiling liquid calculated?

The specific volume of boiling liquid can be calculated using the formula v = m/V, where v is the specific volume, m is the mass of the liquid, and V is the volume occupied by the liquid.

3. What factors affect the specific volume of boiling liquid?

The specific volume of boiling liquid is affected by temperature, pressure, and the composition of the liquid. As temperature increases, the specific volume also increases. As pressure increases, the specific volume decreases. Different liquids have different specific volumes due to variations in their molecular structures.

4. Why is specific volume of boiling liquid important in scientific experiments?

Specific volume of boiling liquid is important in scientific experiments because it helps to determine the density and compressibility of liquids. It is also used in thermodynamic calculations and in the study of phase transitions.

5. How is specific volume of boiling liquid used in industry?

In industry, specific volume of boiling liquid is used in the design and operation of equipment such as boilers and distillation columns. It is also used in the production and storage of gases, as it helps to determine the volume of gas that can be stored in a given container at a specific temperature and pressure.

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