Answer :
The expected relative humidity at 6 am is 42%. Dew formation is expected in the morning. The temperature expected for dew formation is around 48ºF.
To estimate the expected relative humidity at 6 am the next morning, we can use the concept of dew point temperature and the assumption that the water content of the air mass remains constant.
1. Calculation of Dew Point Temperature:
The dew point temperature is the temperature at which the air becomes saturated with water vapor, leading to the formation of dew. It represents the temperature at which the air reaches 100% relative humidity.
Given:
Temperature at 4 pm: 72ºF
Relative humidity at 4 pm: 42%
To estimate the dew point temperature, we can use a dew point calculator or a psychrometric chart. Assuming a dew point calculator is used, we find that the dew point temperature at 4 pm is approximately 48ºF.
2. Estimation of Relative Humidity at 6 am:
Since the water content of the air mass is assumed to be constant, the relative humidity remains the same from 4 pm to 6 am. Therefore, the expected relative humidity at 6 am is also 42%.
3. Dew Formation and Expected Temperature for Dew Formation:
Dew formation occurs when the temperature drops to or below the dew point temperature. In this case, the expected temperature at 6 am is 46ºF, which is lower than the dew point temperature of 48ºF. Therefore, we would expect dew to form in the morning.
The temperature at which dew formation occurs is typically close to or slightly below the dew point temperature. In this case, the expected temperature for dew formation would be around 48ºF, which is the dew point temperature estimated earlier.
Learn more about Dew Point here:
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