View Full Version : Diff b/w heat and temp
sahil
February 8th, 2006, 2:41 AM
plz some 1 tell me wat is diff bw heat and temp
sahil
February 8th, 2006, 2:53 AM
temp = average kinetic energy of molecules but if 2 bodies have same average kinitec of molecules then both will have to the same total heat energy
1kg water at 1oC will contain 4186 energy so a body of same mass at the same temp should contain same energy since average kinetic energy is same
sahil
February 8th, 2006, 2:55 AM
i think i answered my self
because diff substance have diff no of molecules/atoms
sahil
February 8th, 2006, 2:57 AM
does water have the highest no. of molecules since it has higest specific heat
insane_alien
February 8th, 2006, 6:29 AM
but if 2 bodies have same average kinitec of molecules then both will have to the same total heat energy
you were doing so well up until here. if i take a kilogram of aluminium and a kilogram of water, both at 25 Centigrade then the water will have the most heat energy but they both have the same temperature.
Heat is the Total amount of kinetic energy in the object.
temperature is a measure of the average per molecule or other arbitrary unit.
s pepperchin
February 8th, 2006, 1:02 PM
Heat has to do with energy of a substance.
Temperature is the average energy of a substance.
Proof that these concepts are different can be seen if we look at a graph of temperature versus time for a sample being heated. The graph levels off at the temperatures where phase changes occur. If these two concepts where interchangable then the graph would not level off, it would be a smooth line.
insane_alien
February 8th, 2006, 1:51 PM
You can tweak a sample so you get a smooth(ish) line. although its kind of irrelevant and just complicates things.
s pepperchin
February 8th, 2006, 2:04 PM
the tweaking of the sample to get a "smoothish" line doesnt change the fact that heat and temperature are diiferent concepts.
jyoticlub
February 9th, 2006, 12:15 AM
To be Simple
Heat is the amount of enegy in the body
Temperature is the relative measure of heat energy
Klaynos
February 9th, 2006, 1:03 PM
To be Simple
Heat is the amount of enegy in the body
Temperature is the relative measure of heat energy
Really no.... Heat is an energy TRANSPHERE. Temperature is a statistical measure of kinetic energy of atoms/molecues.
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