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Which principal is used to measure the specific heat capacity of a substance ? |
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Answer» The specific heat capacity of a substance is the amount of energy needed to change the temperature of 1 kg of the substance by 1°C. Different substances have different specific heat capacities The specific heat of a body is defined as the quantity of heat required to raise the temperature of unit mass of a body through one degree Celsius.S=Q/m ΔTTo determine the specific heat of solids usually the method of mixtures is followed.In method of mixtures, specific heat of either a solid or a liquid is determined.The method of mixtures obeys the fundamental principle of calorimetry.Heat lost by hot bodies= Heat gained by cold body |
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