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A solution containing 10 mole of ethylen...

A solution containing 10 mole of ethylene glycol dissolved in 1000 g of water (`K_(f) = 1.86 K "molality^(-1)` will freeze at:

A

273 K

B

2.544 K

C

254.4 K

D

25.44 K

Text Solution

Verified by Experts

The correct Answer is:
C
`Delta T_(f)= "molality" xx K_(f) = 10 xx 1.86 =18.6`
`Delta T_(f) = T^(@) - T rArr T=0 - 18.6`
`=-18.6^(@) + 273 K = 254.4 K`
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