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Is hot air rises over a radiator physical or chemical process?
Wiki User
∙ 14y ago
Physical process
Wiki User
∙ 14y ago
The rising of hot air over a radiator is a physical process. It is due to the difference in temperature between the heated air near the radiator and the cooler air in the surrounding environment. As the air near the radiator becomes warmer, it expands and becomes less dense, causing it to rise and be replaced by cooler air. This process, known as convection, is a form of heat transfer.
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How does convection help heat move?
ans: something hotter than surrounding air (radiator), has air surround that gets hot, and conduction, because gas molecules far away is very slow in air, so need another process to heat rest of air. Air surround radiator less dense after heating, therefore rises, creating space for more dense (colder air), which in turn contacts radiator, transfer heat, and rises, and process continues.
How does convection in the earth's mantle cause magma to rise?
it works like air and a radiator the heated air rises and cools then falls and the process is repeated again and again
If steam escapes from a teapot is that chemical reaction explain please?
yes and no, it depends on what you would consider a chemical reaction. most people define a chemical reaction as when two or more chemicals react together, steam escaping from a pot, however, is not two chemicals, it is just water evaporating and condensing in the air to make steam which is hotter than air so it rises out of the pot, so it isn't a chemical reaction, so much as a 'change of chemical state'.
As water on earth evaporates rises and cools it forms what?
Evaporation is an endothermic process.
What are the maximum temperatures that a radiator can reach?
the superconductivity radiator is a leading technology around the worldmedium in it will be activated while the temperature rises to 35Cthe collision between atom and molecule results in higher temperature about 85C in 3 minutes
Bread dough rises when yeast is added physical or chemical?
It IS chemical, but it's not a heat reaction. It's respiration. Yeast is a living organism, which consumes sugar and excretes CO2 and alcohol. - - - - - chemical, because its reacting with heat & that always means chemical. it just includes a physical change..
Is extraction a physical or chemical change?
No. A physical change is a change that does not change the chemical composition of a substance, while a chemical change does change the chemical composition of a substance.
How does convection help heat move?
ans: something hotter than surrounding air (radiator), has air surround that gets hot, and conduction, because gas molecules far away is very slow in air, so need another process to heat rest of air. Air surround radiator less dense after heating, therefore rises, creating space for more dense (colder air), which in turn contacts radiator, transfer heat, and rises, and process continues.
How does convection in the earth's mantle cause magma to rise?
it works like air and a radiator the heated air rises and cools then falls and the process is repeated again and again
Does the rate of chemical reactions slow as the temperature rises?
No. The speed of all chemical rections increases when temperature rises.
When bread dough rises when yeast is added is it a chemical change why?
chemical
How can a thermometer be used to help you decide whether your observation is physical or chemical change?
Physical changes are usually very easily reversed. Chemical changes usually show signs of: -Heat being released -Light being released -Precipitate is formed -Color change
When bread dough rises when yeast is added is it a chemical change?
A chemical change
The wall above the radiator is often dirty with dust from floor How does the dust get there?
dont know really!!!! but i think the warm currents 'pick' the dust from the floor then as the hot air rises the dust rises too and eventually settles on top of your radiator.
Should the radiator fan come on when you cut the ac on?
Yes, when the a/c is used the engine works harder which rises the temp of the engine then turn the fans on to cool the radiator.
When bread rises this is a sign that a chemical reaction is producing?
gas is producing
Radiator just replaced on 94 Toyota Paseo temp still rises Is it the Thermostat?
It's very possible.
