Question

Express the number of times a human heart beats during a life time of 80 years in moles​

Answer 1

average life of an indian is 56 years

56×365.25×24×60×60s

Explanation:

period of heart beat=0.8s

toral number of heart beats in 56 years

56×365.35×24×60×60÷0.8

=2.2×10°9times