The molecules in gases are the most spread out, sound waves travel the ______ in them .

Options

A. fastest
B. solwest
C. does not travel
D. None of them

Answer

To solve the question, "The molecules in gases are the most spread out, sound waves travel the ______ in them," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Sound Waves**: Sound waves are mechanical waves that require a medium (solid, liquid, or gas) to travel. They propagate through the vibrations of the molecules in the medium.

2. **Properties of Gases**: In gases, the molecules are much more spread out compared to liquids and solids. This means there is more space between the molecules.

3. **Effect of Molecular Spacing on Sound Travel**: Because the molecules in gases are spread out, when sound waves travel through a gas, the energy from one molecule to the next takes longer to transfer. The vibrations of the molecules are less efficient in transferring sound energy due to the greater distance between them.

4. **Comparing Sound Travel in Different Mediums**: Sound travels faster in solids and liquids than in gases. This is because in solids, the molecules are closely packed, allowing for quicker transfer of sound energy. In liquids, the molecules are closer than in gases but not as tightly packed as in solids.

5. **Conclusion**: Given that sound waves travel through the vibrations of molecules and that gas molecules are the most spread out, sound waves travel the slowest in gases compared to solids and liquids.

### Final Answer:
Sound waves travel the **slowest** in gases.

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