Get Name Science-8 Teacher Period Date Relative Humidity - Greenslime

If the air is totally saturated at a particular level (e.g., the surface), then the dewpoint temperature is the same as the actual air temperature, and the relative humidity is 100 percent.

Relative humidity can be found by subtracting the temperature on the wet-bulb thermometer from the temperature on the dry-bulb thermometer and using a relative humidity chart.

For example, ing to the heat index, a relative humidity of 75% at air temperature of 80.0 °F (26.7 °C) would feel like 83.6 °F ±1.3 °F (28.7 °C ±0.7 °C). Relative humidity is also a key metric used to evaluate when it is appropriate to flooring over a concrete slab.

The ability to measure and control RH not only helps to maintain a comfortable environment inside a building, but it also helps to optimize the efficiency of HVAC systems by providing an indication of how much outside air being taken in needs to be conditioned, depending on the temperature outside.

Relative humidity tells us how much water vapor is in the air, compared to how much it could hold at that temperature. It is shown as a percent. For example, a relative humidity of 50 percent means the air is holding one half of the water vapor it can hold. Again, this is all dependent on the temperature.

Relative humidity (RH) (expressed as a percent) also measures water vapor, but RELATIVE to the temperature of the air. In other words, it is a measure of the actual amount of water vapor in the air compared to the total amount of vapor that can exist in the air at its current temperature.