2007-02-10 04:29:29 · 3 answers · asked by russell c 2 in Science & Mathematics ➔ Physics
A refrigerant is a substance with a lower boiling point than water.
The boiling point of water at Atmospheric Pressure is 100 °C and produces steam (gas) at the same pressure and temperature.
Let us consider Propane as a liquid refrigerant: Its boiling point is -42 °C at atmospheric pressure.
This means that it is vaporising at -42 °C and producing gas at atmospheric pressure and at the same temperature.
If a refrigerant did not have similar properties, it would not cause cooling.
2007-02-10 11:39:05 · answer #1 · answered by Norrie 7 · 1⤊ 0⤋
Because they have different boiling points and latent heat of vaporization.
2007-02-10 12:36:21 · answer #2 · answered by proofman 1 · 0⤊ 0⤋
Because they are different materials. Different characteristics. Why are apples dirrerent from oranges?
2007-02-10 14:26:02 · answer #3 · answered by sojsail 7 · 0⤊ 0⤋