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Write in brief about specificHeat |
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Answer» The amount of energy required to raise the temperature of a unit MASS of an OBJECT by 1℃ is called the SPECIFIC heat capacity of the object.It is expressed in various units such as J/kg℃ , erg/g℃ , cal/g℃ , kcal/kg℃.The specific JAY capacity is denoted by letter 'c' . The SI unit of specific heat is J/kg℃, and the CGS unit is cal/g℃.If specific har of an object is 'c', the mass of the object is 'm' and if the temperature of the object is raised or decreased by ∆T℃, the heat energy absorbed by the object is given by, m × c × ∆T.Here are some specific heat capacity of some substances in ( cal/g℃ ) :-WATER : 1.0Paraffin : 0.54Kerosene : 0.52Aluminium : 0.215Iron : 0.110Copper : 0.095Silver : 0.056Mercury : 0.033 |
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