Heat Capacity And Specific Heat

Thermodynamics of Class 11

The heat capacity (C) of a sample of a substance is the quantity of heat needed to raise the temperature of the sample of substance one degree Celsius (or Kelvin).

q = cΔt

Heat capacity is directly proportional to the amount of substance.

The specific heat capacity is the quantity of heat required to raise the temperature of one gram of a substance by one degree Celsius at constant pressure.

q = s ×m × Δt

where q is the heat required to raise temperature

m = mass in grams

s = specific heat of the substance

Δt = temperature difference

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