MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryThermodynamics and ThermochemistryThird Law of Thermodynamics

Which law states that entropy of all pure crystalline solids is zero at absolute zero?

A.First law of thermodynamics
B.Second law of thermodynamics
C.Third law of thermodynamics✓ Correct
D.Hess’s law
Explanation

(a) The first law states that energy can neither be created nor destroyed (b) The second law of thermodynamics states that entropy of universe is continuously increasing (c) The third law of thermodynamics states that entropy of all crystalline solids is zero at absolute zero temperature. (d) Hess’s law states that total amount of heat evolved or absorbed in a reaction is independent of path.

Practice More Like This

Take chapter-wise tests, track your progress, and master Thermodynamics and Thermochemistry.

Start Free Practice →