Question

Calculate the molal boiling point constant for chloroform from the fact that its boiling point 61.2degree celciuse and .1 molal solution of an organic substance in chloroform boiled at 61.579degree celciouse

Answer 1

According to be Brogile equation λ=hmv

Mass of electron =9.1×10−31kg

Planck's constant =6.626×10−34kgm2s−1

Velocity of electron =1 % of speed of light

=3.0×108×0.01=3×106ms−1

wave length of electron (λ)=hm

=(6.626×10−34kgm2s−1)(9.1×10−31kg)×(3×106ms−1)

=2.43×10−10m