What is meant by relative humidity how is it measured
Asked by admin @ in Biology viewed by 251 People
What is meant by relative humidity? How is it measured?
Asked by admin @ in Biology viewed by 251 People
What is meant by relative humidity? How is it measured?
Answered by admin @
Answer:
the amount of water vapour present in air expressed as a percentage of the amount needed for saturation at the same temperature.
Explanation:
Relative humidity (RH) in simple words is the ratio of the partial pressure of water vapor to the equilibrium vapor pressure of water at a given temperature. Relative humidity depends on temperature and the pressure of the system of interest. The same amount of water vapor results in higher relative humidity in cool air than warm air.
Humidity is the measure of the amount of moisture in the air. A psychrometer is an example of a hygrometer. A psychrometer uses two thermometers to measure relative humidity; one measures the dry-bulb temperature and the other measures the wet-bulb temperature.
The specific humidity unit is the most reliable unit of measurement of humidity. This measures the weight of water vapor per unit weight of air and it is expressed as grams of water vapor per kilogram of air g.kg-1 is the specific humidity unit.
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