Question

An experimentalist observed the motion of soot particles of radius 0.5 × 10−4 cm in
water-glycerine solution characterised by h = 2.80 × 10−3 kg m−1 s−1 at 300K for 10 s.
The observed value of D x2 was 3.30 × 10−8 cm2. Calculate Boltzmann constant and
hence Avogadro’s number.