Water is _________ times viscous than air?
Correct answer: A. 50
- A. 50
- B. 1000
- C. 5000
- D. 8000
Explanation
At ordinary temperature, water is approximately 50 times more viscous than air, so gases diffuse much more readily through air than through water. Students may choose 1000 because water feels much thicker than air, but viscosity is a measured physical ratio rather than a comparison based on sensation.
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