(a) A mile is 5,280 feet and a foot is 12 inches. How many miles are in 1km? (Ex
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Question
(a) A mile is 5,280 feet and a foot is 12 inches. How many miles are in 1km? (Explain)(b) The gasoline-engine Peugeot 107 consumes 4.6 L of fuel per 100 km. Express the fuel efficiency in miles per gallon. A U.S. liquid gallon is 3.7854 L.
(c) The diesel Cabriolet is more efficient than the gasoline Cabriolet. How many metric tons of CO2 are produced by the diesel and the gasoline Cabriolets in 15,000 miles of driving? A metric ton is 1,000 kg. 1-9. The table shows fuel efficiency for several automobiles. Fuel consumption (L/100 km) CO, emission (g CO /km) Car model Gasoline Engine Peugeot 107 Audi Cabriolet Chevrolet Tahoe 4.6 11.1 14.6 109 266 346 Diesel Engine Peugeot 107 Audi Cabriolet 4.1 8.4 109 223 (ot Rc1.: M. r. oliver-Hoo and G. Pinto. .. Using the Relationship Between Vehicle heel Consumption and CO; Eimissions to Hustrate Chemical Principles"J. Chem. Ed. 2008. 85, 218
Explanation / Answer
a) The following conversion factors are needed.
1 m = 100 cm
1 in = 2.54 cm
1 foot = 12 in
1 mile = 5280 feet
1 km = 1000 m = (1000 m)*(100 cm/1 m) = (1000*100 cm)*(1 in/2.54 cm) = (39370.07874 in)*(1 foot/12 in) = (3280.839895 feet)*(1 mile/5280 feet) = 0.62137 mile (ans).
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