Please explain the relationship between the Air-Fuel ratio and the emission of CO, HC, And NOx From Automobiles, as shown in the graph.

2. You are working for a power plant that makes use of coal tar, a type of liquid fuel as its raw material for burning in a boller. This type of fuel is mainly composed of carbolic oll, naphthalene oil, creosote oil and anthracene oll. After analyzing coal tar you were able to wow it contalns 85.9% 0,63% H, 2.2% S. 4.5% O and 1.1% N. You told the operators to make use of excess air for combustion. The air was assumed to enter at 30°C with 90%RH. In order to follow DENR regulations, you took a sample of the bumper gis to analyze its contents.   Midway your experimentation, the equipment you used broke so it only gave you a partial analysis of 10.64% CO, 3.19%, CO and 0.64% H. a. The operators had no idea how much excess alr was needed, What do you tell them? b. You need to make the report to be passed that day for the analysis of the burner gas. What analysis will you submit the volume of the bumer gas in m/ka tuel is aso needed in your report c. The alr to be supplied a controlled…

4. Pure octane has a boiling point of 125.7 °C, but can be steam distilled with water at a tem- perature of 90 °C. Calculate the mass of octane that codistills with each gram of water and the percent composition of the vapor that is produced during the steam distillation. [Again, you'll need the vapor pressure of water at the steam distillation temp to solve this problem!] Note that if you multiply the second equation from question 3 above by the MW of both the oil and water, you get: mass oil/mass water = (P°) (MW)/ (Pwater) (MW water)

Using RCRA procedures, determine if the following are hazardous wastes. State the reason why, or why not it is hazardous. If it is hazardous, state the category number. Assume the industry producing the waste is a RCRA hazardous waste generator. 1. A drum of sulfuric acid at pH 1.2. A drum of waste trichloroethylene (22% by volume).