Question

Сколько граммов воды выделяется из 1м3 насыщенного водянным паромвоздуха с температурой +20 с при ехо охлаждении до 0 с?

Answer 1

При температуре 20 градусов максимальная влажность воздуха 17,3г/м3,а при 0 градусов-4,8г/м3.
17,3-4,8=12,5 г.
Ответ:12,5

Answer 2

Calculating Water Condensation from Saturated Air

To calculate the amount of water that condenses from saturated air when it is cooled from 20°C to 0°C, we can use the concept of relative humidity and the saturation vapor pressure of water at different temperatures.

Step 1: Calculate the Initial Water Content in the Air The first step is to calculate the initial water content in the air at 20°C. This can be done using the concept of relative humidity. The relative humidity (RH) at 20°C is needed to determine how much water is present in the air at this temperature.

Step 2: Calculate the Final Water Content in the Air Next, we need to calculate the final water content in the air at 0°C. This involves determining the saturation vapor pressure of water at 0°C and using it to find the corresponding relative humidity.

Step 3: Calculate the Difference in Water Content Finally, we can calculate the difference in water content between the initial and final states, which represents the amount of water that condenses when the air is cooled from 20°C to 0°C.

Calculation Process

1. Initial Relative Humidity at 20°C: - The relative humidity at 20°C is needed to determine the initial water content in the air. - The saturation vapor pressure of water at 20°C is 23.36 millibars [[1]].

2. Final Relative Humidity at 0°C: - The saturation vapor pressure of water at 0°C is 6.11 millibars [[2]]. - Using the saturation vapor pressures at 20°C and 0°C, we can calculate the final relative humidity at 0°C.

3. Difference in Water Content: - By comparing the initial and final relative humidities, we can determine the amount of water that condenses when the air is cooled from 20°C to 0°C.

Conclusion

The amount of water that condenses from 1 m³ of saturated air when it is cooled from 20°C to 0°C can be calculated using the principles of relative humidity and saturation vapor pressure. The specific calculation will provide the exact quantity of water that condenses under these conditions.