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Heat can also be transferred through conduction, convection, and radiation in addition to the vibration of molecules. Conduction occurs through direct contact between molecules, convection involves the movement of fluids carrying heat, and radiation is the transfer of heat through electromagnetic waves.
What else can I help you with?
What type of heat transfer occurs in only liquid and gases?
Convection is the type of heat transfer that occurs in only liquids and gases. It involves the transfer of heat through the movement of the fluid molecules due to differences in their density and temperature.
Do microwaves only heat up water, or can they also heat up other substances?
Microwaves can heat up other substances besides water. They work by causing molecules in food to vibrate and generate heat, so they can heat up a variety of materials, not just water.
Why do empty dishes do not heat up in a microwave?
Empty dishes do not heat up in a microwave because there is nothing for the microwave energy to interact with and convert into heat. The microwaves require water molecules or other substances to absorb them and generate heat, which is why only food or liquids heat up in the microwave.
Why can heat not be transferred in this way in an iron rod?
heat is transferred only from high energetic concentration to low energetic concentration. therefore heat cant be transferred in any usual way.
What is heat on a molecular level?
On a molecular level heat is a vibration of molecules. That "thermal vibration" is the chaos at the molecular level. Each molecule has its thermal energy. Only strong bonds (example: covalent bonds) or multitudes of weak bonds (example: hydrogen bond) can withstand thermal energy at room temperature. Even though a single weak bond cannot withstand this intense vibration, a weak bond can play a role in keeping molecules together.
What are molecules always doing?
Molecules in a solid are constantly vibrating. Heating a solid increases the vibration of the molecules. Solids stay fixed because of the attraction between their molecules. This can be broken by increasing heat and therefore vibration to the point of inducing a phase change.
What ubstance in the food absorbs the microwaves?
Water molecules in the food. Microwaves work by only vibrating the water molecules, in order to increase the temperature of the food without significantly altering the properties of the food itself.
What is the basic theory of heat transfer?
Heat transfer occurs by convection, conduction and radiation. In conduction, heat is transferred through collision of rapidly moving molecules. It is only through successive collision of molecules that heat transfers through an object.
How is sound energy is formed?
sound energy is formed by a vibrating body. We can say that sound is produced only when a body is vibrating.
Can you get vibrating on your iPod Touch?
No. No software update or hardware will enable vibrating. This feature is available only with iPhone.
Does hot water and cold water have the same molecular structure?
Yes, the only difference is that hot water's atoms are vibrating faster and therefore producing more heat.
Does heat move only where atoms and molecules are?
Heat can move through any medium that contains particles capable of interacting with one another. In solids, heat is transferred by phonons (vibrational energy), while in fluids, heat is transferred by the movement of atoms and molecules. In a vacuum, however, heat can only be transferred by electromagnetic radiation.
How does it help a cell by only letting certain molecules pas through?
it can keep the cell from dying if if the wrong molecules come through
What state is the matter in when all molecules are just vibrating around?
All forms except a Bose-Einstein condensate, which only occurs at absolute zero.
How sound energy form?
sound energy is formed by a vibrating body. We can say that sound is produced only when a body is vibrating.
Does a lighter object have fewer molecules?
Only if it is of the same material. In other cases, it may, or may not, have less molecules. Molecules come in many different sizes (or masses).
What type of heat transfer occurs in only liquid and gases?
Convection is the type of heat transfer that occurs in only liquids and gases. It involves the transfer of heat through the movement of the fluid molecules due to differences in their density and temperature.
