The federal new source performance standards for a new coal‐fired power plants require that emission of nitrogen oxides be less than 0.7lb of nitrogen oxides per million BTU of coal burned. If a plant emits 0.45lb of NO and 0.15 lb of NO2 per million BTU, what is its nitrogen oxide emission reported as?

Apiping systems consists of 6 m of 6-std type k and 12 m of 4-std type k, both drawn copper tubing. the system conveys ethylene glycol at a rate of 0.013 m3/s. the pressure drop across the system is to be calculated. there are two 90° elbows in the 6-in pipe, a reduction from the 6-in pipe to the 4-in pipe and four 90° elbows in the 4-in pipe. all fittings are soldered (same as flanged) and regular. the inlet and outlet of the system are at the same height.