Question

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

Class XI States of Matter Page 153

Answer 1

in one second , 10^10 grains distributed.

we know,
1 Avogadro's number = 6.022 × 10²³

hence, time taken to distribute one Avogadro's number of wheat grains = one Avogadro's number/number of grains distributed in one second
= 6.022 × 10^23/10^10 sec
= 6.022 × 10^13 sec

time taken = 6.022 × 10^13 sec

Answer 2

Time required =Total grains /Grains distributed

=6.022*10^23/10^10

=6.022*10^13

6.022*10^13/365*24*60*60

=1.909*10^6year