Ok , I have been studying the ideal gas law and its variants for a little while.
Now I am trying to understand how this applys to cooling systems.
For example the basic/simplified version of a refrigerator
has Compressor , Heat-exchanging pipes outside the unit, Expansion valve
Heat-exchanging pipes - inside the unit
Refrigerant ( CFC , ammonia ,...or other variants)
What I don't get fully is the process.
The compressor is changing both the pressure and volume that the ammonia has. (Since the compressor is compressing the volume that the ammonia has which in turn raises the pressure.)
From PV = nRT this implies since the number of moles n and the constant R don't change the Temperature T must go up. So this means the outside exchange pipes will dissipate the heat back down to room temperature.
But what makes the ammonia get colder again on the inner exchange pipes?
Now I am trying to understand how this applys to cooling systems.
For example the basic/simplified version of a refrigerator
has Compressor , Heat-exchanging pipes outside the unit, Expansion valve
Heat-exchanging pipes - inside the unit
Refrigerant ( CFC , ammonia ,...or other variants)
What I don't get fully is the process.
The compressor is changing both the pressure and volume that the ammonia has. (Since the compressor is compressing the volume that the ammonia has which in turn raises the pressure.)
From PV = nRT this implies since the number of moles n and the constant R don't change the Temperature T must go up. So this means the outside exchange pipes will dissipate the heat back down to room temperature.
But what makes the ammonia get colder again on the inner exchange pipes?