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A 0.5 molal solution of ethylene glycol ...

A 0.5 molal solution of ethylene glycol water is used as coolant in a car. If the freezing point constant of water be `1.86^(@)C` per mole, the mixture shall freeze at

A

`0.93^(@)C`

B

`-0.93^(@)C`

C

`1.86^(@)C`

D

`-1.86^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
B

`DeltaT_(f)=1.86xx0.5` `=0.93or0-0.93==0.93^(@)C`
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