Colloidal solution show tyndall effect but true solution do not explain

Scattering of light through a solution when light passes through it is called Tyndall effect.

In a colloidal solution, the particle size is between 1 nm to 100 nm, when light rays fall on colloidal solution, these particles sizes allow scattering of light ray.

But in true solution the size of particles is smaller than 1nm and unable to scatter the light and do not show tyndall effect.

Hence, colloidal solution shows tyndall effect but true solution do not.

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml