Q. 3.43 - An Introduction to General, Organic, and Biological Chemistry

Question

Identify each of the following changes of stane as melting. freezing, sublimation, or deposition:

a. The solid structure of a substance breaks down as liquid forms.

b. Coffee is freeze-dried.

c. Water on the street turns to ice during a cold wintry night.

d. Ice crystals form on a package of frozen corm.

Step-by-Step Solution

Answer

a) A substance's solid structure degrades as liquid forms and melts.

b) The process by which coffee is freeze-dried is known as sublimation.

c) On a cold winter night, water on the street freezes.is frosty

d)During deposition, ice crystals form on a package of frozen corm.

Step 1: Given data

Identify each of the following changes of stone as melting. freezing, sublimation, or deposition

Step 2:The solid structure of a substance breaks (part a)

(a) A substance's solid structure deteriorates. A liquid is formed during this process. A substance's state changes from solid to liquid. As a result, the state change is referred to as melting.

Step 3:Change of coffee(part b)

.(b) The state of water changes from solid to gas when coffee is freeze-dried. As a result, the state change is known as sublimation.

Step 4:Water turns to ice(part c)

 (c) Water condenses into ice. A liquid is converted into a solid during this process. Water's state changes from liquid to solid. As a result, the state change is labeled as freezing

Step 5:Ice crystal(part d)

 (d) On a package, ice crystals form. A solid is formed during this process. Water transitions from a vapor to a solid state. As a result, the state change is referred to as deposition.