Exploring the Relationship Between Pressure and Temperature in Liquids

In summary, the pressure temperature relation is the relationship between pressure and temperature in a gas or liquid, described by the ideal gas law. An increase in pressure leads to an increase in temperature, while a decrease in pressure leads to a decrease in temperature. The ideal gas law is a mathematical equation that represents this relationship. Changes in temperature and pressure have various real-life applications, such as in weather forecasting and refrigeration systems, and are essential in the study of gases and liquids in fields like chemistry, physics, and engineering.
  • #1
banerjeerupak
123
1
Is there a relation between pressure/velocity and temperature for liquids. Something like the ideal gas law for fluids in general?
 
Engineering news on Phys.org
  • #2
Do you mean pressure/volume or pressure/(sound)velocity?

In general fluids are more complex. In an ideal gas you assume that the molecules never touch and so it's just Newtonian mechanics of perfect points moving around. With a liquid all the properties depend on interactions between the molecules of the fluid
 
  • #3
I can not assume it to be compressible fluid. So the ideal gas law is ruled out.

I mean the pressure (volume) and temperature.
 

1. What is the pressure temperature relation?

The pressure temperature relation is the relationship between the pressure and temperature of a gas or liquid. This relationship is often described by the ideal gas law, which states that the pressure of a gas is directly proportional to its temperature and inversely proportional to its volume.

2. How does pressure affect temperature?

An increase in pressure typically leads to an increase in temperature, while a decrease in pressure leads to a decrease in temperature. This is because as the pressure increases, the molecules of a gas or liquid are forced closer together and collide more frequently, transferring energy and increasing the temperature.

3. What is the ideal gas law?

The ideal gas law is a mathematical equation that describes the relationship between the pressure, volume, and temperature of an ideal gas. It is written as PV = nRT, where P is pressure, V is volume, n is the number of moles of gas, R is the ideal gas constant, and T is temperature.

4. How does temperature affect pressure?

An increase in temperature generally leads to an increase in pressure, while a decrease in temperature leads to a decrease in pressure. This is because as the temperature increases, the molecules of a gas or liquid move faster and collide with the walls of their container more frequently, exerting more pressure.

5. What are some real-life applications of the pressure temperature relation?

The pressure temperature relation has many practical applications, such as in weather forecasting, where changes in temperature and pressure can help predict changes in weather patterns. It is also used in refrigeration systems, where changes in pressure and temperature allow for the cooling of air or liquids. Additionally, the pressure temperature relation is essential in the study of gases and liquids in various fields, including chemistry, physics, and engineering.

Similar threads

  • Mechanical Engineering
Replies
3
Views
232
  • Mechanical Engineering
Replies
10
Views
2K
  • Mechanical Engineering
Replies
3
Views
1K
Replies
3
Views
2K
Replies
1
Views
1K
  • Mechanical Engineering
Replies
5
Views
1K
  • Mechanical Engineering
Replies
3
Views
953
  • Mechanical Engineering
Replies
5
Views
1K
Replies
3
Views
988
  • Mechanical Engineering
Replies
8
Views
1K
Back
Top