1.

Examine table 3 and express (a) energy required to break one bond in DNA in eV, (b) typical energy of a proton in a nucleus in eV, (c ) energy released in burining 1000 kg of coal in kilicalories

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Solution :(a)Energy REQUIRED to break one bond of DNA
`=(10^(-20))/(1.6xx10^(-19)J//eV)=0.06eV`
(B) Typical energy of a PROTON in a nucleus
`=(10^(-13))/(1.6xx10^(-19)J//eV)=625000eV`
(c ) Energy RELEASED in burning 1000 kg of coal
`=(3xx10^(-10))/(4.2xx10^(3)J//Kcal)=7142857. 14 kcal`


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