The entropy of a sample of CO2 increases as the CO2 changes from A solid to gasB gas to liquidC gas to solidD liquid to solid
Question
The entropy of a sample of CO2 increases as the CO2 changes from A solid to gasB gas to liquidC gas to solidD liquid to solid
Solution
The entropy of a sample of CO2 increases as the CO2 changes from solid to gas. So, the correct answer is A. Solid to gas.
Here's why:
Entropy is a measure of the disorder or randomness of a system. The more disordered a system is, the higher its entropy.
In the solid phase, the molecules of CO2 are closely packed together in a regular pattern and have less freedom to move around, so the disorder is low and so is the entropy.
When CO2 changes from a solid to a gas, the molecules break free from the regular pattern and can move around freely
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