Questions tagged [heat]

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Mathematical derivation for 1st law of thermodynamics

Mathematical derivation for 1st law of thermodynamics : What I know : 1st law of thermodynamics is known as or derived as the conservation of energy . But how are the terms U , q and W derived from ...
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How to model the kinetics of a reaction while its not being stirred in a batch reactor?

lets consider the following reaction: $$ A + B \rightarrow C $$ Where the rate of reaction ($r$) can be expressed as: $$ r = k*c_a*c_b $$ Where $c_i$ is the concentration of species $i$ and $k$ is the ...
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Air-to-Water Heat Exchanger - Car radiator

I'm looking for a way to keep a liquid under 50°C. This liquid has a thermal conductivity of .1396 and a specific heat of 2.054 both at 40°C. and a constant energy source submerged in it ranging from ...