A 2-kg mixture of 20% N2, 30% O2, and 50% CO2 by mass is at 150 kPa and 300 K. Find the mixture gas constant and the total volume. (Borgnakke, 02/2019, p. P-101) Borgnakke, C., Sonntag, R. E. (02/2019). Fundamentals of Thermodynamics, Enhanced eText, 10th Edition [VitalSource Bookshelf version]. Retrieved from vbk://9781119494966 Always check citation for accuracy before use.

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?