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For a dilute solution having molality m ...

For a dilute solution having molality m for a given solute in a solvent of mol. Wt. M,b.pt.` T_(b)` and heat vaporisation per mole `DeltaH, [(delT_(b))/(delm)]_(mrarr 0)` is equal to

A

Molal elevation constant of solvent

B

`(RT_(b)^(2)M)/(Delta_(vap)H)`, where M in kg , `Delta_(vap)H` and R is `SI` unit

C

`(RT_(b)^(2)M)/(Delta_(vap)S),` Where M in kg , `Delta_(vap)S` and R in SI unit

D

`(RT_(b)^(2)M)/(1000Delta_(vap)H),` where M in g, R and `Delta_(vap)H` in `SI` unit

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The correct Answer is:
A, B, D
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