Is freeze drying a physical change or a chemical change?
Understand the Problem
The question is asking whether the process of freeze drying is classified as a physical change or a chemical change. It is important to understand the definitions of both types of changes in order to categorize freeze drying correctly.
Answer
Freeze drying is a physical change.
Freeze drying is a physical change.
Answer for screen readers
Freeze drying is a physical change.
More Information
Freeze drying, also known as lyophilisation, involves removing water from a material by first freezing it and then applying a vacuum. This process does not involve any new chemical bonds forming or existing ones breaking, which makes it a physical change. It's a common method used for preserving food and other materials.
Tips
A common mistake is thinking that the structural change in the material implies a chemical change, but since no chemical bonds are altered, it's a physical change.
Sources
- Is freeze drying a physical change or a chemical change? - Study.com - homework.study.com
- 10 Types Of Physical Change | Sciencing - sciencing.com
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