What is Keq for the reaction N2 + 3H2 = 2NH3 if the equilibrium concentrations are [NH3] = 2 M, [N2] = 3 M, and [H2] = 1 M?
A. Keq = 1.5
B. Keq = 0.67
C. Keq = 1.33
D. Keq = 0.75

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?