Question

Calculate the moment of inestia of HCl From the Following data, bond length of HCl r=129pm Atomic mass H =1.673*10-27kg And Cl =58.06*10-27kg..?

Answer 1

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

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