Question

In which changes of state do atoms lose energy ? ( select all that apply )
1 ) sublimation
2 ) freezing
3 ) boiling
4 ) melting
5 ) deposition
6 ) condensation

Answer 1

Answer:

freezing

sublimation

condensation

Explanation:

Energy is always involved in changes of state. Matter either loses or absorbs energy when it changes from one state to another. For example, when matter changes from a liquid to a solid, it loses energy.

Answer 2

In deposition atoms lose energy.

• Deposition is the change of state from gaseous state to solid state directly without passing through a liquid state.
• Like,when moist air inside a house comes into contact with a freezing cold window, water vapour in the air changes to tiny ice crystals. This shows the change of state from gaseous to solid i.e.deposition.
• Deposition occurs high above the ground when water vapour in the air changes to ice crystals.

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