Question

How much time in hours it would take to distribute one Avogadro number of wheat grains if ${10}^{20}$ grains are distributed each second?

• A. 0.1673
• B. 1.673
• C. 16.73
• D. 167.3

Answer 1

The correct option is B 1.673

${10}^{20}$ grains are distributed in one sec
$6.022\times {10}^{23}$ grains will be distributed in time = $\frac{(6.022\times {10}^{23})}{{10}^{20}}=6022$ sec = 1.673 hrs