A steel cylinder contains 4.5 mol of Xenon gas at a pressure of 5 atm and a temperature of 77°C. What is the volume of the Xenon tank?

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?

Why is the melting of ice a physical change ?

The independent variable in an experiment will be the variable that you o a) change ob) hold constant ng c) observe for changes