Concept explainers
(a)
To Calculate: The net force between the thymine and adenine.
(a)
Answer to Problem 51P
The net force is
Explanation of Solution
Given:
The given helix-shaped DNA molecule
The net average charge on hydrogen and nitrogen atom is
Formula used:
The net force formula is given as,
Where, k is the proportionally constant,
The net force is calculated as,
Calculation:
Draw the figure for the thymine and adenine.
Here, in this bonds which are responsible are NHO and NHN.
For NHO bonds:
For the O-H attraction,
For the O-N repulsion,
For NHN bond:
For the H-N attraction
For the N-N repulsion,
The net force is given as,
Conclusion:
The net force is
(b)
To calculate: The net force between the cytosine and guanine.
(b)
Answer to Problem 51P
The net force is
Explanation of Solution
Given:
The given helix-shaped DNA molecule
The net average charge on hydrogen and nitrogen atom is
Formula used:
The net force formula is given as,
Where, k is the proportionally constant,
The net force is calculated as,
Calculation:
Draw the structure explaining the bond between the cytosine and guanine.
Here, the bond which are responsible are OHN, NHN, and NHO.
For OHN bond:
For the O-H attraction,
For the H-N attraction
For NHN bond:
For the H-N attraction
For the N-N attraction,
For NHO bond:
For the O-N repulsion,
For the H-N attraction
The net force is given as,
Conclusion:
The net force is
(c)
To calculate: The total force for the DNA molecule.
(c)
Answer to Problem 51P
The net force is
Explanation of Solution
Given:
The number of pairs of molecules is
Formula used:
The net force is given as,
Calculation:
The total force is calculated by using the given value is,
Conclusion:
The net force is
Chapter 16 Solutions
Physics: Principles with Applications
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