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Sublimation and Intermolecular Spaces Quiz

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Sublimation and Intermolecular Spaces Quiz

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Questions and Answers

What is the phenomenon exhibited by naphthalene balls at room temperature?

Melting

Condensation

Sublimation (correct)

Evaporation

Which statement correctly describes the movement of air molecules?

Air molecules move slowly with large intermolecular spaces.

Air molecules move quickly with small intermolecular spaces.

Air molecules move at a higher speed with large intermolecular spaces. (correct)

Air molecules move slowly with small intermolecular spaces.

Why can we smell perfumes several meters away?

Perfumes contain solid particles that travel far in the air.

Perfumes are heavy and settle close to the ground.

Perfumes are light and evaporate quickly into the air. (correct)

Perfumes become thicker as they spread in the air.

In terms of forces of attraction between particles, arrange the following in increasing order: water, sugar, oxygen.

Oxygen < sugar < water Signup and view all the answers

What is the physical state of water at 250°C?

Gaseous Signup and view all the answers

Why does the temperature remain constant during a change of state?

The latent heat is used for the change of state. Signup and view all the answers

How can one liquify atmospheric gases?

By increasing pressure or decreasing temperature Signup and view all the answers

What occurs to the water kept in an earthen pot (matka) during summer?

It cools down due to evaporation and porous nature of the pot. Signup and view all the answers

What role does latent heat play in the change of state of matter?

It maintains a constant temperature during the change of state. Signup and view all the answers

What effect does increasing pressure have on gases?

Liquifies them Signup and view all the answers