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The diagram below shows the different phase transitions that occur in matter.

Which best describes the process that arrow 1 represents?
Molecules are speeding up during boiling.
Molecules are depositing as ice on a surface.
Molecules are slowing down during condensing.
Molecules are moving from stationary positions.

The diagram below shows the different phase transitions that occur in matter. Which-example-1

2 Answers

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The answer is certainly A.
User Boyfromnorth
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Answer : Option A) Molecules are speeding up during boiling.

Explanation : As shown in the above image it is clearly observed that the molecules are been transformed from liquid to gaseous state. Which means that the intermolecular distance between the molecules is increasing as they are boiling and getting transformed into gaseous form. They are speeding up to form gas from liquid state and achieve stability as the heat is supplied in greater amount. Boiling of liquid is causing the liquid molecules to speed up and get transformed into gaseous molecules.

User RoelAdriaans
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