Question

Which of the following diffuses faster? Water vapour, wax or, ethyl alcohol.

June 22, 2024

Answer

Water vapour.

💡 Some Related Questions

One day, Reena was helping her mother in household work. Suddenly a bottle from her mother’s cosmetics broke and the liquid fell on her hand. She got worried and asked her mother why she felt cold. Her mother explained the reason to her which satisfied her. Answer the following questions based on above passage. (𝒊) Can you guess the liquid that felt on Reena’s hand? (𝒊𝒊) Why did she feel cold when liquid fall on her hand? (𝒊𝒊𝒊) What are the values shown by Reena’s mother?

Mrs. Khanna was making breakfast in kitchen. For this purpose she was heating water in a pan. In the meantime, her 12 years old son, Pappu entered the kitchen and saw the water vapour coming out from the pan. Pretend yourself to be Mrs. Khanna and answer the following questions: (𝒊) What is the process going on in the pan? (𝒊𝒊) Why was this process occurring? (𝒊𝒊𝒊) Give one way by which Pappu can relate this phenomenon with his everyday life. (𝒊𝒗) What values are shown by Pappu?

Water as ice has a cooling effect, whereas water as steam may cause severe burns. Explain these observations.

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Substance Melting point(°C) Boiling point(°C)

X -219 -183

Y 119 445

Z -15 78

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