Question #7547

What equation should I use for the internal heat energy of something?

Expert's answer

The amount of heat needed to heat a subject from one temperature level to an other can be expressed as:

Q = cp*m*dT,

where:

Q = amount of heat (kJ);

cp = specific heat (kJ/kg.K);

m = mass (kg);

dT = temperature difference between hot and cold side (K).

Q = cp*m*dT,

where:

Q = amount of heat (kJ);

cp = specific heat (kJ/kg.K);

m = mass (kg);

dT = temperature difference between hot and cold side (K).

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