Which phase change is an endothermic change a. condensation b. vaporization c. deposition d. freezing

Vaporization (Ans. B)

Explanation:

Vaporization is a process where liquid phase changing to a gas phase which is also known as boiling. This process is known as endothermic.

Endothermic process define as they absorb the heat from their surrounding environment. These molecules melting and boiling point determine by the forces which bind together the molecules of a given substances.

These binding forces require more heat energy to overcome, once they overcome the atom can move freely, it allows gas to evaporate and liquid to flow.

Example: Iron takes high temperature to melt because the forces present in the iron are strong.

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