What is the value of the specific heat of all | vedclass

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(A) The specific heat capacity $C$ is defined as the amount of heat required to raise the temperature of a unit mass of a substance by $1 \ K$. Mathem

Vedclass · Accepted Answer

Zero

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(A) The specific heat capacity $C$ is defined as the amount of heat required to raise the temperature of a unit mass of a substance by $1 \ K$. Mathematically,$C = \frac{dQ}{m \ dT}$.According to the Third Law of Thermodynamics,as the temperature $T$ approaches absolute zero $(0 \ K)$,the entropy of a perfect crystal approaches zero.Furthermore,the heat capacity of all substances approaches zero as the temperature approaches absolute zero $(T 	o 0 \ K)$.Therefore,the specific heat of all substances at absolute zero temperature is $0$.

What is the value of the specific heat of all substances at absolute zero temperature?

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