The density of a substance at 0°C is l0 g/cc and at l00°C, its density is 9.7 g/cc. The coefficient of linear expansion of the substance is

The coefficient of volume expansion is given byγ = ∆ρρ1×∆Twhere ρ1 is density, T is temperatureγ = ρ1-ρ2ρ1(T2-T1)     = 10-9.710(100-0) = 3×10-4Coeffiicient of linear expansion isα = γ3 = 3×10-43 = 10-4