find the slope of the (-0.11, 0.0033) (-0.18, 0.0031) (-0.26,0.0003) then by the slope find the activation energy (E) from the slope

  Side of cube = 24 mm

Explanation:

   Usually gold price is represented for 8 g of gold = 300$

   Density of gold = 19.32

   Mass of gold for 10000$ = (10000/300)*8 = 266.67 g

   We have density = Mass/ Volume

   So volume = Mass/density = 266.67/19.32 = 13.80 = 138000

   Volume of cube of gold = , where a is the side of cube,

   So side of cube , a =