Chemical Thermodynamics Question 28

Question: If $ 900,J/g $ of heat is exchanged at boiling point of water, then what is increase in entropy [BHU 1998]

Options:

A) 43.4 J/mole

B) 87.2 J/mole

C) 900 J/mole

D) Zero

Show Answer

Answer:

Correct Answer: A

Solution:

$ \Delta S_{vap}=\frac{(900\times 18)}{373}=43.4J{{K}^{-1}},mo{{l}^{-1}} $ .



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