5.14 How much time would it take to distribute one Avogadro number of wheat grains, if 1010 grains are distributed each second ?

                     Avagadro number = 6.02 ×1023
Thus, time required
=6.02×10231010s
=6.02×1013s
=6.02×101360×60×24×365years
Hence, the time taken would be 1.909×106years.