91Ó°ÊÓ

Given are:The temperature curves for chloroform, a fat, oil, and waxes solvent, is provided.

To find the melting point of chloroform.

The melting point of chloroform is illustrated by B on the above heating curve, which is at $-{60}^{∘}C$.

Given are:The heating curve for chloroform, a solvent for fats, oils, and waxes in a given graph below:

To find the boiling point of chloroform.

At point,$D$which is at ${60}^{∘}C$, the boiling point of chloroform, is shown on the given heating curve.

Given are:The heating curve for chloroform, a solvent for fats, oils, and waxes in a given graph below:

To identify the heating curve segments $A,B,C,D,E$has solid, liquid, gas, melting, or boiling.

The curve$A$is found below the melting point, indicating a solid state

The curve $B$identifies the melting point

The curve $C$is present above the melting point but below the boiling point, indicating that it is in a liquid state

The curve $D$specifies the temperature at which water boils

The curve $E$is present above the boiling point, it denotes a gaseous condition.

Given are:The temperature as $−{80}^{∘}\mathrm{C};−{40}^{∘}\mathrm{C};{25}^{∘}\mathrm{C};{80}^{∘}\mathrm{C}$in heating curve for chloroform, a solvent for fats, oils, and waxes in a given graph below:

To find the following temperature $−{80}^{∘}\mathrm{C};−{40}^{∘}\mathrm{C};{25}^{∘}\mathrm{C};{80}^{∘}\mathrm{C}$is chloroform a solid, liquid, or gas.

Chloroform has a melting point of $-{60}^{∘}C$and a boiling temperature of ${60}^{∘}C.$

On the heating curve, $-{80}^{∘}C$is below the melting point, indicating a solid state. As a result, chloroform exists in a solid state at $-{80}^{∘}C$.

$-{40}^{∘}C$Is present above the melting point but below the boiling point, indicating that it is in a liquid condition.

${25}^{∘}C$Is present above the melting point but below the boiling point, indicating that it is in a liquid condition.

${80}^{∘}C$As it is above the boiling point, it denotes a gaseous state.