Respuesta :

PBCHEM
Answer : If a reactant undergoes first order kinetics and the initial reactant was R is consumed in 4 half lives then,

the first half life would undergo from 1 to 1/2R; 

the second half life will go from 1/2R to 1/4R;

in third half life it will undergo from 1/4R to 1/8R;

And finally in fourth half life it will go from 1/8R to 1/16R.

So, it means [tex]15/16^{th} [/tex] is utilized and only 1/16 R remains

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