info@clay6.com
+91-9566306857  (or)  +91-9176170648
logo

Ask Questions, Get Answers

X
 

According to third law of thermodynamics, the entropy at 0 K is zero for

(a) elements in their stable form
(b) perfectly crystalline solids
(c) substances at 1 atm and $25^\circ C$
(d) $N_2O$

2 Answers

Answer: perfectly crystalline solids
The Third Law of Thermodynamics states, “The entropy of a perfect crystal is zero when the temperature of the crystal is equal to absolute zero (0 K).”
The entropy of a perfect crystal at absolute zero is exactly equal to zero.
answered Feb 24, 2014 by mosymeow_1
edited Mar 20 by sharmaaparna1
 
Solution :
The entropy of a perfect crystal is zero when the temperature of the crystal is equal to absolute zero (0 K).
At zero kelvin the system must be in a state with the minimum possible energy, thus this statement of the third law holds true if the perfect crystal has only one minimum energy state
answered Jan 23 by meena.p
 

Related questions

Ask Question
Tag:MathPhyChemBioOther
Download clay6 mobile app
...
close