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Convection is the process by which heat is transferred by a "fluid" (which, in this case, can actually mean a liquid or a moving gas - both are considered "fluids").
Heat is always transferred from an area of high heat to an area of low heat, regardless of the method. When your hand touches a hot stove, heat moves from the stove to your hand to try to "even out" the amount of heat between the two objects.
In convection, heat is first transferred from an area of high heat to the fluid, then from the fluid to an area of (relatively) lower heat.
Imagine you're sitting downwind of a bonfire. The wood has lots of heat - some of it is transferred to the air. The air is pushed toward you by wind, and when the air hits your skin, there is another heat transfer because your skin has less heat than the air. The net result is a transfer of heat from the wood to your skin, and we say this is by convection.
Another example might be the way everything in a small kitchen gets warm in a hurry when things are baking in a hot oven. Some radiation occurs, but lots of air picks up heat from the stove, and then rises to be displaced by cooler air. The hot air heats things in the upper regions of the kitchen, and then cools and sinks. It then may return to the stove to pick up more heat as hot air there continues to circulate upward. Convection currents in air transfer heat.
What else can I help you with?
The ways in which a human can gain and lose heat?
A person can lose/gain heat in five ways: Conduction is the transfer of heat directly from one object to another. For example sitting on the cold leather seats of an unwarmed vehicle. Convection is the loss of heat through moving air or liquid. When it is cold we lose heat through the blowing wind Evaporation occurs when a liquid changes into a gas. Sweating is an example of evaporation. Radiation is heat sent outward into the air from your body and into nearby colder objects. It is also known as infrared energy. Respiraton is also when our body breathes in warm and humidified air and exhales carrying heat from the body.
Where does body heat escape in a human's body?
Body heat escapes from all of your body. It escapes more in places where we sweat more often, such as the armpits and forehead. It escapes when we blush as the blood is closer to the surface of the skin so heat can escape easier.
How does your body get rid of excess heat?
There are many ways one is perspiration. The sweat evaporates and cools the body because of the latent heat of evaporation of water. (evaporative cooling) This is called thermoregulation. Also, if the temperature around you is hotter than your body, you lose heat by radiation and conduction. Blood vessels also get bigger near the skin when you are hot to help heat leave the body. Blood vessels getting bigger is called vasodilation and this is another method of thermoregulation. One other method of cooling is used by the hairs on your body. When the hairs are flat they increase the flow of air next to the skin increasing heat loss by convection.
Do you lose protein during sex?
No, you do not lose protein during sex. Protein is an essential nutrient that is not lost from the body through sexual activity.
What would happen if organisms didn't lose heat to their environment during metabolism?
If organisms did not lose heat through bodily activities such as sweat, your body would increase in heat such as receiving a fever. Biology states that an organism under high heats would cause the enzyme-substrate composition of an organism to denature, or deform, causing problems of some functions in the organism. If too much denaturing occurs the organism may also face a possibility of death.
How can the body lose heat from radiation conduction and convection?
The body can lose heat through radiation by emitting infrared radiation from the skin. It can also lose heat through conduction by coming into direct contact with cooler surfaces, transferring heat to those surfaces. Additionally, heat can be lost through convection when air or water makes contact with the skin and carries heat away as it flows past the body.
What three ways do you lose heat?
You can lose heat through convection, where heat is transferred through air or water currents; conduction, when heat is transferred through direct contact with a colder object; and radiation, when heat is emitted as infrared radiation from your body.
What process can humans lose heat but not gain it?
Humans can lose heat through processes such as conduction, convection, radiation, and evaporation. However, humans cannot gain heat through evaporation because it is a cooling process where heat is transferred from the body to the surrounding environment.
High air temperature reduces body's ability to lose heat by?
Increasing the gradient between body temperature and the surrounding environment, leading to less efficient heat transfer through convection and radiation.
When you get cold while your swimming does your body lose heat from conduction convection radiation or reflction?
"Reflction" (I assume you mean "reflection") isn't really a way to lose heat. Convection is really only important within a body; it's largely irrelevant when talking about heat transfer from one distinct body (you) to another (the water). There may well be convection in the water, but that has only a secondary impact on you and how cold you are.That leaves radiation and conduction. Both of these processes are going on, but of the two, conduction is by far the more significant in this particular case.
How fast does heat escape a body?
The rate at which heat escapes from a body depends on factors such as the body's surface area, temperature difference between the body and its surroundings, and the body's thermal conductivity. In general, heat loss can occur through conduction, convection, and radiation. Warmer bodies will lose heat faster than colder bodies.
Do you lose a lot of body heat through your hands?
no
The ways in which a human can gain and lose heat?
A person can lose/gain heat in five ways: Conduction is the transfer of heat directly from one object to another. For example sitting on the cold leather seats of an unwarmed vehicle. Convection is the loss of heat through moving air or liquid. When it is cold we lose heat through the blowing wind Evaporation occurs when a liquid changes into a gas. Sweating is an example of evaporation. Radiation is heat sent outward into the air from your body and into nearby colder objects. It is also known as infrared energy. Respiraton is also when our body breathes in warm and humidified air and exhales carrying heat from the body.
How do you lose body heat?
mainly through you skin and breathing.
In what ways can a person lose heat to or gain heat from the surroundings?
A person can lose/gain heat in five ways:Conduction is the transfer of heat directly from one object to another. For example: sitting on the cold leather seats of an un-warmed vehicle.Convection is the loss of heat through moving air or liquid. When it is cold we lose heat through the blowing windEvaporation occurs when a liquid changes into a gas. Sweating is an example of evaporation.Radiation is heat sent outward into the air from your body and into nearby colder objects. It is also known as infrared energy.Respiration is also when our body breathes in warm and humidified air and exhales carrying heat from the body.
Where do you lose the most body heat?
The most body heat is lost through the head, followed by the hands and feet.
Why do objects lose heat?
Objects lose heat through a process called thermal radiation, where heat energy is emitted as infrared radiation. This radiation carries heat away from the object and into the surrounding environment, causing the object to cool down. Additionally, objects can also lose heat through conduction and convection as heat is transferred to cooler surfaces or air molecules.
