Heat Exchange Between Air & Water: 1 Cubic Meter Each

In summary, the temperatures of the 1 cubic meter of water at 23 degrees and the 1 cubic meter of air at 20 degrees will equalize in a few minutes due to diffusion.
  • #1
Jesper
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If i have let's say have 1 cubic meter of water at a temperature of 23 degree, in a closest system connected to a 1 cubic meter of air of 20 degree, how long time does it take for the heat to balance out, the surface between the two a 1 square meter.
 
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  • #2
Jesper said:
If i have let's say have 1 cubic meter of water at a temperature of 23 degree, in a closest system connected to a 1 cubic meter of air of 20 degree, how long time does it take for the heat to balance out, the surface between the two a 1 square meter.

The "heat" will never balance. The temperatures will equalize in a few minutes, depending upon the surface tension of the water and the vapor pressure of the overlying humid air. This is essentially a problem in diffusion.
 

1. How does heat exchange occur between air and water?

Heat exchange between air and water occurs through a process called convection. This is when heat is transferred from one medium (air) to another (water) through the movement of molecules.

2. What factors affect the rate of heat exchange between air and water?

The rate of heat exchange between air and water is affected by various factors such as temperature difference between the two mediums, surface area, and the properties of the materials involved.

3. Does the temperature of air or water affect the rate of heat exchange?

Yes, the temperature of both air and water can affect the rate of heat exchange. The larger the temperature difference between the two, the faster heat will be transferred.

4. How does the surface area of the air and water affect heat exchange?

The larger the surface area of the air and water, the greater the contact between the two mediums, allowing for more efficient heat exchange. This is why larger bodies of water tend to have more stable temperatures compared to smaller bodies of water.

5. Can heat exchange between air and water be affected by external factors?

Yes, external factors such as wind, humidity, and atmospheric pressure can affect the rate of heat exchange between air and water. For example, wind can increase the rate of heat exchange by blowing the heated air away from the water's surface, while humidity can decrease the rate by adding moisture to the air.

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