Chemistry is everywhere - Transition of Phases

12 important questions on Chemistry is everywhere - Transition of Phases

What similarities does Ice Water and Water Vapour have in common?

They all consist of the same substance: water

Why does water looks different than ice?

This is because you are dealing with different phases or states of matter of the substance of water.

When is a substance gaseous?

At a temperature higher than its boiling point
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Which indications of the state do we have?

S
L
G
AQ

When do you know if the substance is pure or mixed?

You have to melt or boil the substance. During the melting or boiling you can measure the temperature. When the temperature is constant during melting or boiling than you are dealing with a pure substance.

Is this a pure substance or a mixture?

Pure

Is it a pure substance or mixture?

Mixture

What happens with the change (l--g)?

Evaporation

What happens with the change (g -->l)

Condensation

What happens with the change (s -->g)?

Sublimation

What happens with the change of (g-->s)?

Deposition

How can you convert the temperature from Kelvin to degrees Celsius

You deduct 273 from the the temperature

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