The two-bed carbon adsorption system will handle 3.78 m3 s-1 (8000 acfm) of air containing 700 ppm of hexane. Pilot plant studies indicate that the carbon can absorb 8 lbm hexane per 100 lbm carbon under the conditions at which the plant will be operating. The operating conditions will be 32.2 C (90 F), 760 mm Hg (1 atm) and a removal efficiency of 99%. Hexane (C6H14) has a molecular weight of 86.18 g/g-mole. The airflow rate is 3.78 m3 s-1 (8000 acfm), air temperature is 32.2 C (90 F) and pressure is 760 mm Hg (1 atm). Find the mass (kg) of carbon needed.

The melting point of sulfur is 115 °c and its boiling point is 445 °c. what state would sulfur be in at 200 °c?

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?

Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that