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What do the letters of q = cm △ t stand for?
C is the specific heat, M is the mass, t is the change of temperature
What's the name of the heat calculation formula q = cm △ t? From which law?
Heat calculation formula
The formula q = cm △ t is used to calculate the heat absorbed or released by a substance
Q is not only the heat released, but also the heat absorbed
M is the mass of the substance in small letters
C is the specific heat capacity of the substance, that is, the heat absorbed or released by the substance when the temperature is increased or decreased by 1 ℃ per kilogram of substance
Δ t is the change in the temperature of an object
Definition, calculation formula and unit of heat energy Q?
Heat energy is internal energy. It refers to the sum of kinetic energy and molecular potential energy of all molecules of an object moving irregularly. Its unit is coke. The research on the variation of internal energy (i.e. heat) has practical value, but the research on the total amount of internal energy has no practical application value. Therefore, there is no calculation formula for the total amount of heat energy
Unit of heat formula
Q=cm△t
What are the units of C and M?
The unit of C is J / (kg * ℃)
The unit of M is kg
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