Question

Calculate the moment of inertia for HCI molecule from the given value of rotational
constant, B=10.40 cm
(A) 2.68 >10 kg m
(B) 4.21x10- kg m
(C) 2.68 10- kg m
(D) 4.21x10- kg m​

Answer 1

Answer:

Mass of Cl atom= 35.55×10

−27

kg

mass of H atom=1.66×10

−27

kg

Total mass of the molecule= 37.21×10

−27

kg

Distance between the two atoms= 10

−10

m

Distance from the axis of rotation, d=

2

10

−10

d=0.5×10

−10

m

Moment of inertia, I=mr

2

I=37.21×10

−27

×(0.5×10

−10

)

2

kg.m

2

=9.3025×10

−47

kg.m

2

Answer 2

YES THE ABOVE ANSWER IS DEFINATELY CORRECT