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Chemical Engineering · Q240

Chemical Engineering Thermodynamics

Engineering and GATE · Chemical Engineering · question 240

Q240

Third law of thermodynamics is helpful in

A.
Prediction of the extent of a chemical reaction
B.
Calculating absolute entropies of substances at different temperature
C.
Evaluating entropy changes of chemical reaction
D.
Both B and C
Answer

Answer: Option D

Solution

Answer: Option D
Solution:
Since the third law of thermodynamics is concern about entropy of a pure crystalline substance at absolute zero temperature this can be used as a reference.