List the three states of matter in order of (a) increasing molecular disorder

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Identify the three common states of matter: solid, liquid, and gas.

Understand that molecular disorder refers to the randomness or chaos in the arrangement and movement of molecules.

Recognize that in solids, molecules are tightly packed in a fixed structure, leading to the least disorder.

Acknowledge that in liquids, molecules are less tightly packed than in solids and can move around more freely, resulting in moderate disorder.

Realize that in gases, molecules are far apart and move independently, leading to the highest level of disorder.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

States of Matter

The three primary states of matter are solid, liquid, and gas. Each state is characterized by the arrangement and behavior of its molecules. In solids, molecules are closely packed in a fixed structure, while in liquids, they are more loosely arranged and can flow. Gases have molecules that are far apart and move freely, leading to the highest degree of disorder.

Molecular Disorder

Molecular disorder refers to the degree of randomness or chaos in the arrangement of molecules within a substance. In solids, molecular disorder is minimal due to the fixed positions of molecules. Liquids exhibit moderate disorder as molecules can move past one another, while gases display the highest disorder, with molecules moving independently and occupying a larger volume.

Order of States by Disorder

When listing the states of matter by increasing molecular disorder, the order is solid, liquid, and gas. This sequence reflects the transition from a highly ordered arrangement in solids to a more disordered arrangement in liquids, culminating in the maximum disorder found in gases. Understanding this order helps in grasping the physical properties and behaviors of different states of matter.

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Textbook Question

At three different temperatures, T1, T2, and T3, the molecules in a liquid crystal align in these ways:

(a) At which temperature or temperatures is the substance in a liquid crystalline state? At those temperatures, which type of liquid crystalline phase is depicted?

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At three different temperatures, T1, T2, and T3, the molecules in a liquid crystal align in these ways:

(b) Which is the highest of these three temperatures? [Section 11.7]

Textbook Question

List the three states of matter in order of (b) increasing intermolecular attraction.

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(a) How does the average kinetic energy of molecules com- pare with the average energy of attraction between mole- cules in solids, liquids, and gases?

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