7. Transformation of state of matter

5 m.

Answer the case-based question given below:

Knowing that matters can change its states; when a state change occurs, the properties of substances also change.

Prithika to create a smoky effect, she place dry ice (solid \(CO_2\)) was placed in warm water. Instantly, thick white fog appeared.

i. What transformation of state occurs in dry ice?

ii. What does this conveys about the relation between temperature and kinetic energy of particles?

Lower temperature leading to high kinetic energy of particles resulting in faster sublimation
Higher temperature leading to high kinetic energy of particles resulting in faster sublimation
Higher temperature leading to zero kinetic energy of particles resulting in slower sublimation
Higher temperature leading to low kinetic energy of particles resulting in faster sublimation

iii. What is the melting point and boiling point of water?

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