Which bond angle θ would result in the maximum dipole moment for the triatomic molecule YXY?

Question

Which bond angle θ would result in the maximum dipole moment for the triatomic molecule YXY? (A) θ = 90° (B) θ = 120° (C) θ = 150° (D) θ = 180°

Tardigrade Admin · Accepted Answer

The dipole moment of two dipoles inclined at an angle θ is given by the equation μ = √X2 + Y2 + 2XY cos θ cos 90° = 0. Since the angle increases from 90 to 180, the value of cos θ becomes more and more - ve and hence resultant decreases. Thus, dipole moment is maximum when θ = 90°.

Q. Which bond angle $θ$ would result in the maximum dipole moment for the triatomic molecule $Y X Y$ ?

$θ = 9 0^{\circ}$

$θ = 12 0^{\circ}$

$θ = 15 0^{\circ}$

$θ = 18 0^{\circ}$

Q. Which bond angle θ would result in the maximum dipole moment for the triatomic molecule YXY?

θ=90∘

θ=120∘

θ=150∘

θ=180∘

The dipole moment of two dipoles inclined at an angle θ is given by the equation μ=X2+Y2+2XYcosθ​ cos90∘=0. Since the angle increases from 90 to 180, the value of cosθ becomes more and more −ve and hence resultant decreases. Thus, dipole moment is maximum when θ=90∘.

Q. Which bond angle $θ$ would result in the maximum dipole moment for the triatomic molecule $Y X Y$ ?

$θ = 9 0^{\circ}$

$θ = 12 0^{\circ}$

$θ = 15 0^{\circ}$

$θ = 18 0^{\circ}$