The picture is a model of a nitrogen atom. what is incorrect about the atomic orbital arrangement of electrons in this model and how should they be arranged?

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.

Explain what happens at the saturation point when adding salt to water at room temperature.