The normal boiling point of trichlorofluoromethane, CCl3 F, is 24^∘ C, and its freezing point i

step 1 The normal boiling point of trichlorofloromethane and its freezing point are given. So the norma

The normal boiling point of trichlorofluoromethane, CCl3 F,...

The normal boiling point of trichlorofluoromethane, $\mathrm{CCl}_{3} \mathrm{~F}$, is $24^{\circ} \mathrm{C}$, and its freezing point is $-111^{\circ} \mathrm{C}$. Complete these sentences by supplying the proper terms that describe a state of matter or a change in state. (a) At standard temperature and pressure, $\mathrm{CCl}_{3} \mathrm{~F}$ is a __________. (b) In an arctic winter at $-40^{\circ} \mathrm{C}$ and 1 atm pressure, $\mathrm{CCl}_{3} \mathrm{~F}$ is a If it is cooled to $-120^{\circ} \mathrm{C}$, the molecules arrange themselves in an orderly lattice, the $\mathrm{CCl}_{3} \mathrm{~F}$ and becomes a ________. (c) If crystalline $\mathrm{CCl}_{3} \mathrm{~F}$ is held at a temperature of $-120^{\circ} \mathrm{C}$ while a stream of helium gas is blown over it, the crystals will gradually disappear by the process of _________. If liquid $\mathrm{CCl}_{3} \mathrm{~F}$ is boiled at atmospheric pressure, it is converted to a $\longrightarrow$ at a temperature of ________.

The normal boiling point of trichlorofluoromethane, $\mathrm{CCl}_{3} \mathrm{~F}$, is $24^{\circ} \mathrm{C}$, and its freezing point is $-111^{\circ} \mathrm{C}$. Complete these sentences by supplying the proper terms that describe a state of matter or a change in state. (a) At standard temperature and pressure, $\mathrm{CCl}_{3} \mathrm{~F}$ is a __________.
(b) In an arctic winter at $-40^{\circ} \mathrm{C}$ and 1 atm pressure, $\mathrm{CCl}_{3} \mathrm{~F}$ is a If it is cooled to $-120^{\circ} \mathrm{C}$, the molecules arrange themselves in an orderly lattice, the $\mathrm{CCl}_{3} \mathrm{~F}$ and becomes a ________.
(c) If crystalline $\mathrm{CCl}_{3} \mathrm{~F}$ is held at a temperature of $-120^{\circ} \mathrm{C}$ while a stream of helium gas is blown over it, the crystals will gradually disappear by the process of _________.
If liquid $\mathrm{CCl}_{3} \mathrm{~F}$ is boiled at atmospheric pressure, it is converted to a $\longrightarrow$ at a temperature of ________.

Key Concepts

States of Matter

States of matter – solids, liquids, and gases – are the distinct forms that different phases of matter exhibit based on the arrangement and energy of their molecules. In a solid, molecules are arranged in an ordered lattice; in a liquid, they are less tightly organized, allowing flow; and in a gas, the molecules are far apart and move freely.

Phase Transitions

Phase transitions are processes in which a substance changes from one state of matter to another, typically as a result of changes in temperature and/or pressure. These transitions involve energy changes, which alter the intermolecular forces and molecular order governing each state.

Boiling/Vaporization

Vaporization, commonly referred to as boiling when it occurs at the boiling point, is the process in which a liquid transforms into a gas. This phase change requires the liquid to absorb enough energy to overcome intermolecular attractions, leading to the formation of gas bubbles throughout the liquid.

Freezing/Solidification

Freezing, or solidification, is the phase transition in which a liquid becomes a solid upon cooling below its freezing point. During this process, the molecules lose kinetic energy and arrange themselves into a well-organized, crystalline lattice, resulting in a rigid structure.

Sublimation

Sublimation is the process by which a solid phase transforms directly into a gas without passing through the liquid state. This transition occurs under specific conditions of temperature and pressure where the energy input allows molecules to escape from the solid lattice into the gas phase directly.

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