Asked by: Gospodin Kozak
science chemistry

Why is the evaporation of water an example of a physical change?

25
The evaporation of water is a physical change. When water evaporates, it changes from the liquid state to the gas state, but it is still water; it has not changed into any other substance. For example, hydrogen burning in air undergoes a chemical change in which it is converted to water.


Also to know is, why is evaporation of water a physical change and not a chemical change?

9A. Evaporation of water is a physical change and not a chemical change because it is a change that does not change substances like a chemical change, just a physical change. The four physical properties that describe a liquid is when it freezes, boils, evaporates, or condenses.

Subsequently, question is, which is not a physical change of water? They are also physical changes because they do not change the nature of the substance. Boiling water: Boiling water is an example of a physical change and not a chemical change because the water vapor still has the same molecular structure as liquid water (H2O).

One may also ask, what physical property is used in evaporation?

It is the temperature at which a solid changes to a liquid or a liquid changes to a solid. Evaporation occurs when water is lost from a substance.

Is water evaporating a chemical reaction?

The evaporation of water is a physical change. When water evaporates, it changes from the liquid state to the gas state, but it is still water; it has not changed into any other substance. For example, hydrogen burning in air undergoes a chemical change in which it is converted to water.

Related Question Answers

Huizhen Bodanis

Professional

Is burning wood a physical change?

Burning of wood is a chemical change as new substances which cannot be changed back (e.g. carbon dioxide) are formed. For example, if wood is burned in a fireplace, there is not wood anymore but ash. Compare: Physical change - The opposite of a chemical change is a physical change.

Salas Parcerisas

Professional

Is rotting of food a physical change?

Rotting food: This would be a chemical change, because it's not reversible and involves changing the bonds of chemicals in the food. Also because the decomposition of the plant changes the chemical formulas of the compounds in the plant. Cutting vegetables: Physical, because no bonds are being formed or broken.

Sandi Hoderlein

Professional

Is boiling water a physical change?

Boiling waterBoiling water is an example of a physical change and not a chemical change because the water vapor still has the same molecular structure as liquid water (H2O). If the bubbles were caused by the decomposition of a molecule into a gas (such as H2O →H2 and O2), then boiling would be a chemical change.

Ilina Medina

Explainer

Is boiling salt water a physical change?

There are many simple examples of physical changes, like melting ice (solid water) to liquid then boiling of water turning liquid to steam (gaseous water). A somewhat more interesting example is dissolving salt into water.

Guillerma Kubacki

Explainer

Is milk spoiling a chemical change?

Souring milk is not something you can reverse, and the process of it souring produces new molecules. Some other examples of chemical changes would be things that involve burning, the creation of a new gas or bubbles, or change in color, like the formation of rust.

Morris Aquino

Explainer

Is ice melting a physical change?

When you melt an ice cube (H2O), you have a physical change because you add energy. You added enough energy to create a phase change from solid to liquid. Physical actions, such as changing temperature or pressure, can cause physical changes. No chemical changes took place when you melted the ice.

Citlalli Grune

Pundit

Which is a chemical property?

A chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity. They can also be useful to identify an unknown substance or to separate or purify it from other substances.

Rhimou Grado

Pundit

Is shape a chemical property?

The shape of an object can be changed and the object will still remain true to its chemical composition.

Soterraño Beiger

Pundit

Is evaporation a phenomenon?

As the faster-moving molecules escape, the remaining molecules have lower average kinetic energy, and the temperature of the liquid decreases. This phenomenon is also called evaporative cooling. This is why evaporating sweat cools the human body. However, these liquids are evaporating.

Raimon Hofschneider

Pundit

How does evaporation happen?

Evaporation happens when a liquid substance becomes a gas. When water is heated, it evaporates. The molecules move and vibrate so quickly that they escape into the atmosphere as molecules of water vapor. Heat from the sun, or solar energy, powers the evaporation process.

Salvino Steward

Pundit

Where is evaporation used?

Evaporation can be applied to any mixture of liquids and volatile solids provided the liquid is volatile enough to evaporate. If the liquid is water, evaporation can be carried out in large ponds using solar energy. Aqueous waste can also be evaporated in closed-process vessels using steam energy.

Adena Basualdu

Teacher

What is an example of evaporation?

Examples of Evaporation. Two familiar examples of evaporation are sweating and the rain cycle. Water on earth's surface evaporates and travels up through the atmosphere, where it's cooler. The cooler temperatures cause the vapor to condense back into water droplets, which come together to form clouds.

Leanne Thebes

Teacher

What are the characteristics of evaporation?

Evaporation is one of the two forms of vaporization. It is the process whereby atoms or molecules in a liquid state (or solid state if the substance sublimes) gain sufficient energy to enter the gaseous state. It is the opposite process of condensation.

Heli Islyamov

Teacher

How do humans use evaporation?

Perspiration Cooling of Body
When the ambient temperature is above body temperature, then radiation, conduction and convection all transfer heat into the body rather than out. The cooling effect of perspiration evaporation makes use of the very large heat of vaporization of water.

Tynisha Moleirinho

Teacher

Is boiling point a chemical property?

A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to undergo a specific chemical change.

Emmie Echevarrieta

Reviewer

Is the amount of matter in an object?

Mass measures the amount of matter in a substance or an object. The basic SI unit for mass is the kilogram (kg). Volume measures the amount of space that a substance or an object takes up.

Fethi Muhlegg

Reviewer

What are 10 chemical changes examples?

The ten examples of chemical changes are :
  • Burning of coal, wood, paper, kerosene, etc.
  • Formation of curd from milk.
  • Electrolysis of water to form hydrogen and oxygen.
  • Rusting of iron.
  • Bursting of a cracker.
  • Cooking of food.
  • Digestion of food.
  • Germination of seeds.

Arica Kachub

Reviewer

What are the 10 physical properties?

Physical properties include: appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, and many others.

Alise Neunheuser

Reviewer

What are 10 physical changes examples?

Examples of Physical Changes
  • Crushing a can.
  • Melting an ice cube.
  • Boiling water.
  • Mixing sand and water.
  • Breaking a glass.
  • Dissolving sugar and water.
  • Shredding paper.
  • Chopping wood.

Co-Authored By:

EveryThingWhat Staff Editor

5

25th June, 2020

97

91% of readers found this page helpful.

4.1/5

Click a star to add your vote

Similar Asks
Trending