QQuestionChemistry
QuestionChemistry
Why is the evaporation of water a physical change and not a chemical change?
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Answer
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Step 1I'll solve this problem step by step, explaining the key differences between physical and chemical changes with respect to water evaporation.
Step 2: Define Physical Change
A physical change is a transformation that alters the physical properties of a substance without changing its chemical composition. In a physical change: - The molecular structure remains the same - No new substances are formed - The change can be reversed easily - Only physical properties like state, shape, or size are altered
Final Answer
Evaporation is a physical change because the chemical composition of water remains unchanged, the molecular structure is preserved, and the transformation can be easily reversed.
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