Problem: Complete the following sentences on predicting the relative entropy of a system.The words are: decreases, equal to, increases, less than, greater than1. Temperature Changes: for a given substance, S° __________as the temperature increases.2. Physical States and Changes of State: as the freedom of motion of the substance  ____________ , the entropy increases. The size of the entropy change is such that ΔS°vap is much  ____________  ΔS°fus.3. Dissolving a Gas: when a gas dissolves in a liquid, the entropy always  ____________  but when dissolved in another gas it  ____________ .4. Dissolving a Solid or a Liquid: the entropy of a dissolved solid or liquid is always  ____________  the entropy of the pure substance.5. Atomic Size: the entropy of atoms generally  ____________  down a group since the number of microstates  ____________ .6. Molecular Complexity: the entropy of molecules  ____________  as they become more complex and the number of atoms  ____________ .

FREE Expert Solution

We're being asked to complete the following sentences on predicting the relative entropy of a system.

The words are: decreases, equal to, increases, less than, greater than

For Statement 1: 

Recall that temperature is the average kinetic energy of gas molecules. This means increasing the temperature of a gas also increases the kinetic energy. Higher kinetic energy allows the gas molecules to move around more, which means there’s more chaos or disorder in the system.

Temperature Changes: for a given substance, S° increases as the temperature increases.


For Statement 2: 

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Problem Details

Complete the following sentences on predicting the relative entropy of a system.

The words are: decreases, equal to, increases, less than, greater than

1. Temperature Changes: for a given substance, S° __________as the temperature increases.

2. Physical States and Changes of State: as the freedom of motion of the substance  ____________ , the entropy increases. The size of the entropy change is such that ΔS°vap is much  ____________  ΔS°fus.

3. Dissolving a Gas: when a gas dissolves in a liquid, the entropy always  ____________  but when dissolved in another gas it  ____________ .

4. Dissolving a Solid or a Liquid: the entropy of a dissolved solid or liquid is always  ____________  the entropy of the pure substance.

5. Atomic Size: the entropy of atoms generally  ____________  down a group since the number of microstates  ____________ .

6. Molecular Complexity: the entropy of molecules  ____________  as they become more complex and the number of atoms  ____________ .

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Entropy concept. You can view video lessons to learn Entropy. Or if you need more Entropy practice, you can also practice Entropy practice problems.

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Based on our data, we think this problem is relevant for Professor Ilies' class at DREXEL.