General Discussion
Related: Editorials & Other Articles, Issue Forums, Alliance Forums, Region ForumsIs there a word for how quickly a substance gets hot or gets cold?
Science isnt my strong suit..
LakeArenal
(28,817 posts)TreasonousBastard
(43,049 posts)raccoon
(31,111 posts)Thermal conductivity refers to the amount/speed of heat transmitted through a material. Heat transfer occurs at a higher rate across materials of high thermal conductivity than those of low thermal conductivity.
KY_EnviroGuy
(14,491 posts)it's the inverse of thermal conductivity. "Thermal resistance" is very commonly used in electronics.
Good examples for demonstrating how these terms are used would be if you heated one end of a ceramic rod (which has high thermal resistance but low conductivity), it might take an extremely long time to feel heat at the opposite end. However, doing the same with a copper rod (which has low thermal resistance but high conductivity), you will feel heat at the opposite end quickly.
In terms of science, a valid answer to your question is quite complex because it depends on how the heat is applied (conduction, convection or radiation), the mass of the object being heated, whether the object is liquid, solid or gas along with some other properties of the substance.
It's been around 50-years since I studied thermodynamics so about all I know now is a little basic practice like boiling water for oatmeal....
customerserviceguy
(25,183 posts)jberryhill
(62,444 posts)Itll put a whole new spin on oatmeal.
KY_EnviroGuy
(14,491 posts)Also love hot oat bran cereal and almond milk sounds good mixed in with it, too.......
hunter
(38,313 posts)Yeah, it's complicated.
KY_EnviroGuy
(14,491 posts)Big shuttle fan here.......
Clash City Rocker
(3,396 posts)I got that from my wife, whos a scientist.
RockRaven
(14,967 posts)jberryhill
(62,444 posts)Heat capacity and specific heat are equilibrium properties that dont tell you how fast an object becomes hot or cold, but tells you how much energy must be added or removed to effect a change of temperature.
Thermal conductivity tells you how fast you can add or remove heat to it.
But, in general, neither of those things is relevant to how hot or cold something feels. The perception of temperature by, say, your hand, is a complex physical and biological process.
What do you really want to know?
ProudLib72
(17,984 posts)96.8 to freezing in a matter of seconds!
jberryhill
(62,444 posts)Mine used Kelvin.
ProudLib72
(17,984 posts)jberryhill
(62,444 posts)raccoon
(31,111 posts)dameatball
(7,398 posts)You win the internet today!!!!!!!!