Barbecue grills

A large number of polycyclic aromatic hydrocarbons are known Many have been synthesized m the laboratory and several of the others are products of com bustion Benzo[a]pyrene for example is present m tobacco smoke contaminates food cooked on barbecue grills and collects m the soot of chimneys Benzo[a]pyrene is a carcinogen (a cancer causing substance) It is converted m the liver to an epoxy diol that can induce mutations leading to the uncontrolled growth of certain cells... 

Even though society has moved toward centralized industries and utilities, we still have many personal sources of air pollution for which we alone can answer—(1) automobiles, (2) home furnaces, (3) home fireplaces and stoves, (4) backyard barbecue grills, and (5) open burning of refuse and leaves. Figure 6-4 illustrates the personal emissions of a typical U.S. family. 

Evaporation is necessary in gas-powered barbecue grills. Fuel is safe and easy to store as a liquid. The liquid fuel is stored under pressure in a tank attached to the barbecue grill. When the grill is turned on, the liquid fuel is heated just enough so it evaporates into a gas. This gas is easily ignited to create a cooking flame. 

This bomb uses the smallest rcfillable propane bottle commercially available. The 5-gallon size is the common, squat, round bottle used for trailers and barbecue grills and holds a little more than 20 pounds of liquefied propane when full. A 10-pound high-explosive main charge detonates this bomb. To prepare ... 

According to the Barbecue Industry Association, three out of four U.S. households own a barbecue grill, more than half of all Americans use their grills year-round, and over 60% of barbe-cuers were men. 

You can pasteurize your potting mix indoors in a conventional oven or microwave, or outdoors on a barbecue grill. Be aware, though, that heating soil will create a strong odor. If you re concerned about the smell lingering in your house, try the outdoor method. After treating the soil let it cool before you use it, or store it in a closed container. 

Outdoor barbecue grill. Fill a clean, shallow pan with soil. Set the pan over the fire of an outdoor barbecue grill. Insert a meat thermometer into the soil. When the thermometer registers 140°F, begin timing, and keep the soil over the heat for 30 more minutes. It the soil temperature threatens to exceed 180°F, add a small amount of cool water to the soil to moderate the temperature. 

Propane, CgHg, can be used conveniently as a fuel in your home, car, or barbecue grill because it is easily liquefied and transported. If 454 g (1.00 lb) of propane is burned, what mass of oxygen (in grams) is required for complete combustion, and what masses of carbon dioxide and water (in grams) are formed. ... 

What do you remember about last summer s Fourth of July Amazing bursts of color from fireworks shot over a lake Mouthwatering aromas coming from a barbecue grill Do the processes that result in those colors and smells have anything in common ... 

Propane is widely used in liquid form as a fuel for barbecue grills and camp stoves. For 75.3 g of propane, calculate (a) the moles of compound (b) the grams of carbon. 

Your family might use small tanks of liquid propane as fuel for your barbecue grill or larger tanks for heating and cooking. 

Grilling What mass of propane (CsHs) must be burned in a barbecue grill to release 4560 kJ of heat The AHcomb of propane is —2219 kj/mol. 

Propane, C3H8, is used as a fuel for gas barbecue grills, where it burns in a controlled fashion. But if a mixture of propane and air is ignited in a closed space, like a gas pipeline, an explosion can easily result. In either of these cases, the propane combines with oxygen, O2, to form carbon dioxide and water. Write a balanced chemical equation describing this reaction. 

You may have observed bright yellow flames in the barbecue grill when salt or marinade drops onto the charcoals. The yellow flame emission is characteristic of sodium atoms. In contrast, when potassium salt is burned, the characteristic color emission is reddish. Each element emits a particular color when burned in an open flame. FPD is based on this principle. 

At home, corrosion can be seen on vehicle body panels, barbecue grills, outdoor furniture, and metal tools. The main reason for replacing car radiator coolant every year is to replenish the corrosion inhibitor that limits corrosion of the cooling system. Corrosion protection is built into all major household appliances such as water heaters, furnaces, washers and dryers. 

One sign that the Birch or "Nazi" method has been used to synthesize methamphetamine is an empty propane tank like those used for barbecue grills. Such tanks have a blue patina around the valve. What could account for this sheen ... 

Plastics and elastomers are frequently used for wheels for a variety of consumer products. Everything from in-line skates to barbecue grills, to strollers, use plastic wheels. How do various plastics resist abrasion from contact with concrete pavement Erosion of plastics is a factor in dishwashers, plumbing systems, fans, and pumps. Most domestic sump pumps are now made from plastics and in use they are required to carry sand-filled water from basement drain crocks. How do various plastics resist this type of wear ... 

Aluminum foil, by the way, was developed in the 1940s by Richard S. Reynolds, the nephew of tobacco king R. R. Reynolds, to protect cigarettes and hard candies from moisture. Soon it was found everywhere. Food was sold in attractive aluminum packaging and cooked in aluminum boats and dishes or, wrapped in foil, on barbecue grills or in oven broilers. When the meal was done, the leftovers were again wrapped and preserved in yet another layer of aluminum. Few products have been so quickly and universally absorbed into the American home as aluminum foil. 

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