If `900J//g `of heat is exchanged at boiling point of water then water is the increase in entropy.
A. 43.4 J/K-mole
B. 87.2 J/K mole
C. 900 JK/mol
D. Zero
A. 43.4 J/K-mole
B. 87.2 J/K mole
C. 900 JK/mol
D. Zero
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Correct Answer – A
`Delta S? = (Delta H)/(T)`
`Delta H = 900 J//g`
`Delta H = 900xx18 J//mol` and boiling point of water = 373 K
`therefore Delta S = (900xx18)/(373)=43.4 J//K-mol`