<h2>Summary</h2>
<ul>
<li>Relative humidity is the fraction of water vapor in a gas compared to the saturation value.</li>
<li>The saturation vapor density can be determined from the vapor pressure for a given temperature.</li>
<li>Percent relative humidity is defined to be

<p>\(\text{percent relative humidity}=\cfrac{\text{vapor density}}{\text{saturation vapor density}}×\text{100}\text{.}\)</p>
</li>
<li>The dew point is the temperature at which air reaches 100% relative humidity.</li>
</ul>
<h2>Glossary</h2>
<h3>dew point</h3>
<p>the temperature at which relative humidity is 100%; the temperature at which water starts to condense out of the air</p>
<h3>saturation</h3>
<p>the condition of 100% relative humidity</p>
<h3>percent relative humidity</h3>
<p>the ratio of vapor density to saturation vapor density</p>
<h3>relative humidity</h3>
<p>the amount of water in the air relative to the maximum amount the air can hold</p>
<section data-element-type="conceptual-questions"></section>

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Summarizing Humidity, Evaporation, and Boiling

Physics is a science discipline concerned with the nature and properties of matter and energy. Physics topics include mechanics, heat, light and radiation, sound, electricity, magnetism, the structure of atoms, and so on.

Physics

Discover temperature scales, thermal expansion of solids and liquids, the ideal gas law, kinetic theory, phase changes, humidity, and more in this tutorial on temperature, kinetic theory, and gas laws.


Summarizing Humidity, Evaporation, and Boiling

Summary

Glossary

dew point

saturation

percent relative humidity

relative humidity

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