The three major components of air are N2(bp-196^∘ C), O2(bp-183 ^∘ C), and Ar (bp .-186^∘ C). Su

step 1 This question is asking us to predict the order of evaporation for the given gase. So for us to

The three major components of air are N2(bp-196^∘ C),...

The three major components of air are $\mathrm{N}_{2}\left(\mathrm{bp}-196^{\circ} \mathrm{C}\right)$, $\mathrm{O}_{2}\left(\mathrm{bp}-183{ }^{\circ} \mathrm{C}\right)$, and $\mathrm{Ar}$ (bp $\left.-186^{\circ} \mathrm{C}\right)$. Suppose we have a sample of liquid air at $-200^{\circ} \mathrm{C}$. In what order will these gases evaporate as the temperature is raised?

The three major components of air are $\mathrm{N}_{2}\left(\mathrm{bp}-196^{\circ} \mathrm{C}\right)$, $\mathrm{O}_{2}\left(\mathrm{bp}-183{ }^{\circ} \mathrm{C}\right)$, and $\mathrm{Ar}$ (bp $\left.-186^{\circ} \mathrm{C}\right)$. Suppose we have a
sample of liquid air at $-200^{\circ} \mathrm{C}$. In what order will these gases evaporate as the temperature is raised?

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Key Concepts

Phase Transition and Temperature Dependence

Phase transitions, such as evaporation, depend critically on temperature. As the temperature of a liquid mixture is increased, the components with lower boiling points will reach their boiling points sooner and begin to evaporate first. This temperature dependency is essential in understanding how different substances undergo phase changes at different rates within a mixture.

Component Separation in Mixtures

In mixtures like liquid air, each component has its own unique boiling point, which enables selective evaporation. As the mixture is heated, the component with the lowest boiling point will vaporize first, effectively separating it from other components. This principle is widely applied in processes such as fractional distillation, where components are separated based on differences in boiling points.

Boiling Point

The boiling point is the temperature at which a substance transitions from its liquid phase to its gaseous phase. It is a fundamental physical property that indicates how tightly molecules are held together in the liquid state; substances with lower boiling points require less heat to vaporize compared to those with higher boiling points.

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