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Specific Heat Capacity of a Metal

Specific Heat Capacity of a Metal

How to Measure Specific Heat Capacity of a Metal The specific heat capacity, often simply called specific heat, refers to the amount of heat ( joule or cal) required to cause a unit of mass (say a gram or a kilogram) to change its temperature by 1°C or 1°K. Standard metric units are Joules/kilogram/Kelvin (J/kg/K). More commonly used units are J/g/°C or cal/g/°C. 
  • Add a known mass (mw) of the water to the calorimeter
  • Measure the temperature of the water (Tw)
  • Measure the mass of the metal sample (mm). Metal is heated in a bunsen hot water bath.
  • Record the temperature (Tm) of the hot metal. (it is the same as the hot water)
  • Use the tongs to carefully pick up the metal sample and transfer it to the calorimeter and watch the temperature.
  • Record the temperature (TF).
Do the math The specific heat of he material under investigation is given by: ΣQ = 0 Qlost metal + Qgain water = 0 mcm ΔTm + mcw ΔTw = 0 Solve for cm below. mcm (TF -Tm ) + mcw (TF -Tw ) = 0

Specific Heat