Clausius-Clapeyron relation
The Clausius-Clapeyron relation describes how the pressure and temperature of a substance change when it transitions between states, like from liquid to vapor. Essentially, it shows the relationship between the change in pressure and the temperature at which a phase change occurs (like boiling or freezing). This principle helps us understand phenomena like why water boils at lower temperatures at higher altitudes. It’s a fundamental concept in thermodynamics that helps explain how different substances behave under varying conditions of heat and pressure.
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The Clausius-Clapeyron relation describes how the pressure and temperature of a substance affect its phase changes, such as from liquid to gas. It illustrates that when a substance evaporates, it requires energy (heat) to break bonds between molecules, altering its pressure and temperature. This relationship helps explain phenomena like why boiling occurs at lower temperatures at higher altitudes. Essentially, it provides a mathematical way to understand how changes in temperature influence the state of a substance (solid, liquid, gas) and the pressure it exerts.