Q. If 900 J/g of heat is exchanged at boiling point of water then increase in entropy
A) 43.4 J/mol
B) 87.2 J/mol
C) 900 J/mol
D) Zero
Explanation
(a)
$\mathrm{\Delta}S_{vap} = \frac{(900 \times 18)}{373} = 43.4\ JK^{- 1}mol^{- 1}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.