Methane (ch4) at 298 k, 1 atm enters a furnace operating at steady state and burns completely with 220% of theoretical air entering at 400 k, 1 atm. the products of combustion exit at 500 k, 1 atm. the flow rate of the methane is 1.2 kg/min. kinetic and potential energy effects are negligible and air can be modeled as 21% o2 and 79% n2 on a molar basis. determine the rate of heat transfer for a control volume enclosing the reacting gases, in kw (use sign convention). there is a +/-5% tolerance. -4659.8655

The isotonic saline solution described in part a is connected to an unknown solution via a semipermeable membrane, the unknown solution level drops. based on this information, what can be said about these two solutions?

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?

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro