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

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(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

Vedclass · Answer

(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?

Similar Questions

If the ratio of the diameters of two spheres made of the same material is $1:2$,what is the ratio of their heat capacities?

The temperature of $5$ moles of a gas which was held at constant volume was changed from $100^{\circ}C$ to $120^{\circ}C$. The change in internal energy was found to be $80$ Joules. The total heat capacity of the gas at constant volume will be equal to ...... $J/K$.

The thermal capacity of $100 \,g$ of aluminum (specific heat $= 0.2 \,cal / g ^{\circ} C$) is ............ $cal / ^{\circ} C$.

Write the old and new definition of calorie.

In engines,water is used as a coolant because ......

Vedclass Test Series

Exam Paper Generator

Online Exam Module