Question

We can find tiny droplets of water on the outer surface of a steel glass containing cold water or ice. This shows that:

• A. steel contains air
• B. air contains water vapour
• C. cold water can seep through solids
• D. none of the above

Answer 1

Answer: (B)

air contains water vapour

Sometimes we see water droplets on the outer surface of the glass containing ice or cold water. This is because the water vapour present in air ,on coming contact with the cold glass of water looses energy and gets counted to liquid state which we see as water droplets.