1.

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

Answer»

Molal elevation constant of solvent
`(RT_(b)^(2)M)/(Delta_(vap)H)`, where M in kg , `Delta_(vap)H` and R is `SI` UNIT
`(RT_(b)^(2)M)/(Delta_(vap)S),` Where M in kg , `Delta_(vap)S` and R in SI unit
`(RT_(b)^(2)M)/(1000Delta_(vap)H),` where M in g, R and `Delta_(vap)H` in `SI` unit

Answer :A::B::D


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