Find the ratio of densities of lead at 100 degree centigrade and -100 degree centigrade , if the average co-efficient of volume expansion of lead is 8.4x10-5 per degree centigrade ? Share with your friends Share 1 Ved Prakash Lakhera answered this V100=V01+γ×∆T =V01+8×10-5×100=1.008V0V100=1.008V0----1And V-100 =V01-8×10-5×100or V-100=0.992V0------2The dendity is inversely proportional to the volumei. e. ρt α 1VtSo ρ100 ρ-100=V-100V100So dividing eqn 2 by eqn 1, we get ρ100 ρ-100= V-100V100=0.992V01.008V0=0.984 1 View Full Answer