Question
The table below shows the distance between the atoms in an atom pair. All four pairs of atoms have the same amount of electric charge.
Pair of Atoms Distance Between the Atoms
A & B 4 units
C & D 9 units
P & Q 25 units
X & Y 16 units
Which pair of atoms are repelled from each other with the most force?
A.
pair C & D
B.
pair P & Q
C.
pair X & Y
D.
pair A & B
Pair of Atoms Distance Between the Atoms
A & B 4 units
C & D 9 units
P & Q 25 units
X & Y 16 units
Which pair of atoms are repelled from each other with the most force?
A.
pair C & D
B.
pair P & Q
C.
pair X & Y
D.
pair A & B
Answers
Answered by
GPT-5 mini
D. pair A & B
By Coulomb's law the repulsive force ∝ 1/r^2. With distances 4, 9, 25, 16 the largest 1/r^2 is for r = 4 (1/16), so A & B feel the greatest repulsion.
By Coulomb's law the repulsive force ∝ 1/r^2. With distances 4, 9, 25, 16 the largest 1/r^2 is for r = 4 (1/16), so A & B feel the greatest repulsion.
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