Tuesday, July 14, 2009

Ok math buffs and engineers small question in Qs=mC(delta T) what does the 'C' represent?

this is an equasion for sensible heat, M is mass, delta t is the heat differences..... but C i cant make my head work.. thanks all

Ok math buffs and engineers small question in Qs=mC(delta T) what does the 'C' represent?
The specific heat is a property of the particular material. It is the number that is the answer to the question, "How much energy would it take to raise the temperature of one unit of this material one degree?"
Reply:C represents the specific heat... either in constant volume or constant pressure.





Q = m C Delta T





Q = heat


m = mass


C = specific heat at constant volume or constant pressure


Delta T = change in temperature
Reply:hi.


c is specific heat of the substance to which heat is supplied.


:-)
Reply:specific heat
Reply:As everyone has said, specific heat.





Usually expressed in units of Joules/gram/degree C or British Thermal Unit (BTU)/lb/degree F





In US units (the old british units) the specific heat of water is 1.0 BTU/lb/deg F because the BTU was defined as the heat to raise a pound of water by 1 degree





In SI units, the specific heat of water is about 4.18 J/gram/degree C or 1 calorie/gram/degree





Most substances have a specific heat lower than water.





Just as the "specific gravity" of a substance is its density related to water =1, so specific heat related the heat capacity of substances to water as a standard.

sp

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