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(C) Newton's law of cooling states that the rate of loss of heat $dQ/dt$ of a body is directly proportional to the temperature difference between the

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Specific heat of liquids

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(C) Newton's law of cooling states that the rate of loss of heat $dQ/dt$ of a body is directly proportional to the temperature difference between the body and its surroundings,provided the difference is small.Mathematically,$\frac{dQ}{dt} = -k(	heta - 	heta_0)$.Since the rate of loss of heat is also given by $\frac{dQ}{dt} = -ms \frac{d	heta}{dt}$,where $m$ is the mass,$s$ is the specific heat,and $\frac{d	heta}{dt}$ is the rate of cooling.Equating the two,we get $-ms \frac{d	heta}{dt} = -k(	heta - 	heta_0)$,which implies $\frac{d	heta}{dt} = \frac{k}{ms}(	heta - 	heta_0)$.By measuring the rate of cooling $\frac{d	heta}{dt}$ for a liquid of known mass $m$ and comparing it with a standard liquid,the specific heat $s$ of the liquid can be determined.Thus,it is used for the determination of the specific heat of liquids.

Newton's law of cooling is used in the laboratory for the determination of the ...........

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