Question

energy required to break one Bond in DNA is 10 raise to minus 20 J ........ eV​

Answer 1

energy required to break one Bond in DNA is 10^-20 J

we have to covert 10^-20J into eV [electron volt ]

we know, 1eV means, energy acquired by an electron accelerating through a potential difference of one volt and it is equal to 1.6 × 10^-19J

because ,1.6 × 10^-19 J = 1eV

so, 1 J = 1/1.6 × 10^19 eV

or, 10^-20 J = (1/1.6) × 10^-19 × 10^20

= 10/1.6 eV

= 6.25 eV

hence, energy required to break one bond of DNA is 6.25 eV

Answer 2

Answer:

(a) Energy required to break one bond of DNA is {10-20 J}/{1.6 x 10-19 J/eV} ≅ 0.06 eV

(b) Kinetic energy of an air molecule is {10-21 J}/{1.6 x 10-19 J/eV} ≅ 0.0062 eV

(c) The average human consumption in a day is {107 J}/{4.2 x 103 J/cal} ≅ 2400 kcal...

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