The latent heat of vaporisation of water is 540 cal g-1at 100°C. Kb for water is

(A) 0.562 K.mole-1   

(B) 1.86 K.mole-1 

(C) 0.515 K.mole-1

 (D) 5.12 K.mole-1

 

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#10 | Elevation in Boiling Point

Concept Questions :-

Elevation of Boiling Point

(C) Kb=0.002×TB2LV=0.002×3732540=0.515 K mole-1

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