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Water is added to the solution such that the mole fraction of water in the solution becomes 0.9. The boiling point of the solution is 
a.354.7K        b.376.2K
one month ago

Answers : (3)

Arun
22021 Points
							
 
I have attached an image containing solution. please check and let me know if any query exist. I will be happy to help you.
one month ago
Rajat
177 Points
							
The actual boiling point of water when no solute is added in it is 373 K. When a solute is added to an aqueous solution according to the colligative property the solution suffers a increase in boiling point.
Thus here the boiling point of the solution must be greater than 373 K. So answer is B.
Increase in boiling point =∆T= K(m/W)
one month ago
Arun
22021 Points
							
Dear student
X(H2O) = 0.9
X (C2H5OH) = 0.1
delta Tb = Kb * m
0.52 * 0.1 * 1000/ (0.9 * 18) = 3.21 K
hence boiling point Tb = 373 + 3.21 = 376.21K
 
Hence option B is correct
27 days ago
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