The ammonia molecule (nh3) has a dipole moment of 5.0 x 10 ammonia molecules in the gas phase are placed in a uniform electric field e with magnitude 1.00 x 106 n/c. (a) what is the change in electrical potental energy when the dlpole moment of a molecule changes its orlentation with respect to e from parallel to perpendicular? (b) at what absolute temperature t is the average translational kinetic energy 3/2kt of a molecule equal to the change in potential energy calculated in part (a)? (above this termperature, thermal agitation prevents the dipoles from allgning with the electric field.)