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A solution containing 62 g ethylene glyc...

A solution containing 62 g ethylene glycol in 250 g water is cooled to `-10^(@)C`. If `K_(f)` for water is 1.86 K `mol^(-1)`, the amount of water (in g) separated as ice is :

A

16

B

32

C

48

D

64

Text Solution

Verified by Experts

The correct Answer is:
D
Let x gram water is separated out
`DeltaT_f = K_fm`
`10=1.86xx (1xx1000)/((250-x))`
or, 2500-10x = 1860
or, 10x = 640
or, x = 64g.
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