91Ó°ÊÓ

Deoxyribonucleic acid (DNA) is a polymer made up of two polynucleotide chains that coil around each other to create a double helix and carry genetic instructions for all known organisms and viruses' formation, function, growth, and reproduction.

a) The system gets increasingly disordered as the number of 'particles' increases during the reaction to generate two random coils from a single double helix, raising the entropy of the system and making the reaction spontaneous.

As a result, for the forward process, $\mathrm{Δ³\S }>0$.

b) The $\mathrm{Δ³Ò}$can be written as follows:

$\mathrm{Δ³Ò}=\mathrm{Δ\pm á}-\mathrm{T}×\mathrm{Δ³\S }$

If $\mathrm{T}×\mathrm{Δ³\S }<<\mathrm{Δ\pm á}$, then

$\begin{array}{rcl}∆H-T×∆s& >& 0\\ ∆G& >& 0\end{array}$

Gibb's vitality is beneficial to the onward movement.

c) Since $\mathrm{Δ³Ò}=0$while the reaction is at equilibrium,

$\mathrm{Δ\pm á}-\mathrm{T}×\mathrm{Δ³\S }=0$

as well as the melting temperature, which can be written as

$\mathrm{T}=\frac{\mathrm{Δ\pm á}}{\mathrm{Δ³\S }}$