Podcast
Questions and Answers
What is the expected physical state of water at 25°C?
What is the expected physical state of water at 25°C?
- Gas
- Solid
- Liquid (correct)
- Plasma
Why is ice at 273 K more effective in cooling than water at the same temperature?
Why is ice at 273 K more effective in cooling than water at the same temperature?
- Because ice has a higher thermal conductivity than water
- Because ice has a lower specific heat capacity than water
- Because ice requires more heat energy to increase its temperature (correct)
- Because ice has a higher density than water
What produces more severe burns, boiling water or steam?
What produces more severe burns, boiling water or steam?
- It depends on the duration of exposure
- Boiling water, because it has a higher temperature
- Both produce equally severe burns
- Steam, because it has a higher temperature and latent heat of vaporization (correct)
What is the purpose of the rubber sheet in the particle movement model?
What is the purpose of the rubber sheet in the particle movement model?
What is the primary material used in the construction of an 'iron almirah'?
What is the primary material used in the construction of an 'iron almirah'?
What is the function of the string in the particle movement model?
What is the function of the string in the particle movement model?
What is the expected physical state of water at 0°C?
What is the expected physical state of water at 0°C?
Why is water at room temperature a liquid?
Why is water at room temperature a liquid?
What is the primary difference between the physical states demonstrated in the model?
What is the primary difference between the physical states demonstrated in the model?
What is the purpose of the transparent jar in the particle movement model?
What is the purpose of the transparent jar in the particle movement model?
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