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Specific Heat Capacity of Metals

The amount of heat, which is necessary to increase 1degree Celsius temperature, for a unit mass, is called specific heat capacity


The symbol c is representing as a specific heat temperature. It is applicable in same phase only. The SI unit of Sp. heat is Cal/gm degree Celsius.Chart containing specific heat capacity of metalsDerivation of Specific heat capacityThe heat is required to rise temperature of a substance in a particular phase Q is proportional to(i) The mass of the body(ii) The difference of temperature dTSo it can be expressed asQ α m …………………………………………….(i) Q α dT……………………………………………. (ii)Combining eq (i) and (ii) we get,Q α m.dTQ = cp m.dT…………………………………….. (iii)This cp is called Specific heat capacity.For changing 1 degree temp for 1kg of mass the heat requires 1J.so if we put these values in eq (iii) we get,1="cp" 1.1cp = 1We can now say introduce the definition as- The amount of heat energy required to raise 1Kg of mass by 1 Degree Celsius is called The specific heat capacity .It is also the ability of heat absorption of a substance. 


 The sp heat capacity of water is 4.186Joule/gram degree Celsius. 

Sp heat capacity of different metals is showing in a chart. 


  


My forthcoming post is on Formula for Capacitance and Formula for Frequency of a Wave will give you more understanding about Physcis.


 Steps to determine the specific heat capacity of a metalCalorimeter is used to determine the specific heat capacity of any substance (metal, non-metal, fluid etc).So 1st step we have to calculate the heat capacity of the calorimeter.Step 1:We will determine the heat capacity of calorimeter by using another metal with known heat capacity.Let us consider Iron to determine the heat capacity of Calorimeter. We know that SFe = 0.450 J/degree Celsius /gmIron may be used for this purpose; as we know the Sp heat capacity of Iron issFe = 0.450 J oC-1 g-1, we have to enter this value to determine the Sp heat capacity of Calorimeter.Step 2:When this value is determined then we use this value to determine the Sp heat capacity of Copper.