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Calculate the ebullioscopic constant for...

Calculate the ebullioscopic constant for water. The heat of vaporisation is 40.685 kJ ` mol^(-1)`

A

0.512 K kg `mol^(-1)`

B

1.86 K kg `mol^(-1)`

C

5.12 K kg `mol^(-1)`

D

3.56 K kg `mol^(-1)`

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The correct Answer is:
A
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