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Nature of Matter Activity

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Questions and Answers

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?

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?

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?

To stretch and show particle movement in a gas Signup and view all the answers

What is the primary material used in the construction of an 'iron almirah'?

Iron Signup and view all the answers

What is the function of the string in the particle movement model?

To create vibrations and show particle movement Signup and view all the answers

What is the expected physical state of water at 0°C?

Solid Signup and view all the answers

Why is water at room temperature a liquid?

Because of the strong intermolecular forces between water particles Signup and view all the answers

What is the primary difference between the physical states demonstrated in the model?

Particle arrangement Signup and view all the answers

What is the purpose of the transparent jar in the particle movement model?

To observe particle movement in a gas Signup and view all the answers