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Question: the ammonia molecule nh3 has a dipole moment of 501030cm...

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The ammonia molecule (NH3) has a dipole moment of 5.0×10−30C⋅m. Ammonia molecules in the gas phase are placed in a uniform electric field E⃗ with magnitude 1.0×106 N/C .

A)What is the change in electric potential energy when the dipole moment of a molecule changes its orientation with respect to E⃗  from parallel to perpendicular?

B) At what absolute temperature T is the average translational kinetic energy 32kT of a molecule equal to the change in potential energy calculated in part (a)? (Note: Above this temperature, thermal agitation prevents the dipoles from aligning with the electric field.)

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