Solutions Question 93

Question: The molal boiling point constant for water is 0.513oC,kg,mol−1 . When 0.1 mole of sugar is dissolved in 200ml of water, the solution boils under a pressure of one atmosphere at [AIIMS 1991]

Options:

A) 100.513oC

B) 100.0513oC

C) 100.256oC

D) 101.025oC

Show Answer

Answer:

Correct Answer: C

Solution:

ΔTb=Kb×m=0.513×(0.1200×1000)

=0.2565,oC , Tb=100.256oC

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