- Featured Examples of Heat Conduction
- 1- From a hot coffee to the cup that contains it
- 2- From a hot cup to our hands
- 3- From the beach at our feet
- 4- From hot compresses to muscles
- 5- From fire to metal tweezers
- 6- From the radiator to hand
- 7- Hand in hand to an ice cube
- 8- From the engine of a car to the hood
- 9- From an iron to a shirt
- 10- From the fireplace to a poker
- 11- From a hand to a coin
- 12- From one person to another
- 13- From hot food to the plate that contains it
- 14- From the hand to a piece of chocolate
- 15- From a flame to our skin
- 16- From stones to our skin
- 17- From light bulbs to our skin
- 18- From drinks to ice
- 19- From a soup to a teaspoon
- 20- From the flame to the pot and from the pot to the water
- References
The driving is one of the three processes through which the body heat is transferred to a higher temperature body with lower temperature. This process refers to the transmission of heat energy through the body's molecules, which can be present in solid, liquid or gaseous states.
In conduction there is no real displacement of the heat energy particles, but rather these are agitated and spread through the body. Conduction transfer is invisible: a metal tool heats up when it comes into contact with fire without any changes in the tool.
Conduction is a transfer of heat that occurs from a body with a higher temperature to a body with a lower temperature.
Conduction is a transfer of heat that occurs from a body with a higher temperature to a body with a lower temperature.
When the ice melts, it's all about driving. If we warm our hands by holding a cup of coffee, it is also driving. When we iron clothes, heat conduction intervenes. Even when we get burned by a flame, it happens due to conductive heat transfer.
This shows that in our day to day, there are hundreds of examples of heat transfer through conduction. Here are more examples of this process.
Featured Examples of Heat Conduction
1- From a hot coffee to the cup that contains it
Hot liquids transfer heat to the container that contains them, causing the container to heat up a bit.
For example, if hot coffee is poured into a mug, it will heat up.
2- From a hot cup to our hands
When it's cold, people drink hot drinks to keep warm. Holding the beverage container long enough will make the hand of the person holding it warmer.
3- From the beach at our feet
Sediments on the beach absorb heat from the sun and this heat is transferred to our feet if we walk barefoot on the sand.
4- From hot compresses to muscles
Compresses (hot water bottles) are used to relax the muscles. Heat is transferred from the compress to the skin and from there to the muscles.
5- From fire to metal tweezers
When a barbecue is made, the instruments used to turn the meats are made of metal. When these tongs come into contact with the broilers, the heat transfer begins.
If the tweezers remain in contact with the heat source for a long time, the skin of the person holding them could be injured.
6- From the radiator to hand
Radiators are responsible for producing heat to heat houses. For this reason, the surface of these appliances is usually hot. Placing your hand on the radiator will transfer the heat and we may even feel pain if the heat is excessive.
7- Hand in hand to an ice cube
If an ice cube is placed on a person's hand, heat will transfer from the skin to the cube, causing the cube to melt.
8- From the engine of a car to the hood
When a car engine is started, the hood heats up due to the transfer of heat generated by the operation of the engine.
9- From an iron to a shirt
The irons are heated to eliminate wrinkles in clothing. When the iron comes into contact with the fabric, the heat begins to transfer.
10- From the fireplace to a poker
The pokers that are used to move the pieces of wood in the fireplace are made of metal, which are good conductors of heat. If a poker is left in contact with the heat source in the fireplace, the heat will be transferred from it to the poker.
If the poker remains in contact with the fire long enough, the heat will be conducted to the full extent of the metal tool.
11- From a hand to a coin
Coins tend to be cold, or at least colder than human skin. If you hold a coin in your hand, heat will transfer from the skin to the coin, causing it to heat up.
12- From one person to another
On a cold day, people can hug each other to keep each other warm. Heat is transferred from the higher temperature individual to the lower temperature individual.
13- From hot food to the plate that contains it
Hot food conducts heat to the plate it is on (if it is made of a conductive material, such as ceramic).
14- From the hand to a piece of chocolate
If we hold a piece of chocolate for a long time, it will melt because of the heat that is being transferred from the hand to it.
15- From a flame to our skin
If, with bare skin, we touch a flame (from a candle, from the kitchen, among others), the heat will transfer from the fire to our skin, causing us to burn.
16- From stones to our skin
Stones absorb heat from the sun. If we touch one that has been exposed to the sun for a long time, the heat will transfer from it to our skin.
17- From light bulbs to our skin
Traditional light bulbs get hot when they are on. If we touch one on, the heat will transfer from the bulb to our skin, producing burning.
18- From drinks to ice
When ice is added to a beverage, heat is transferred by conduction from the beverage onto the ice causing the ice to thaw.
19- From a soup to a teaspoon
If a teaspoon is left in a bowl of hot soup, the heat is transferred from the liquid to the metal.
20- From the flame to the pot and from the pot to the water
When we boil water, the heat is conducted from the flame to the pot that contains the water. From there, the heat is transferred to the water causing it to reach its boiling point.
References
- Heat conduction. Retrieved on July 18, 2017, from simple.wikipedia.org
- Thermal conduction. Retrieved on July 18, 2017, from en.wikipedia.org
- Conduction. Retrieved on July 18, 2017, from bbc.co.uk
- What is heat conduction. Retrieved on July 18, 2017, from phys.org
- How is heat transferred? Retrieved on July 18, 2017, from edinformatics.com
- Heat transfer. Retrieved on July 18, 2017, from hyperphysics.phy-astr.gsu.edu
- Heat conduction. Retrieved on July 18, 2017, from hyperphysics.phy-astr.gsu.edu.