Problem 22
What does a catalytic converter do?
Problem 23
What is the major cause of acid rain?
Problem 24
Explain how acid rain is formed and its effects on the environment and on building materials.
Problem 25
Explain the natural greenhouse effect.
Problem 32
A person obtains approximately \(2.5 \times 10^{3}\) Calories a day from his or her food. How much energy is that in a. calories? b. joules? c. kilowatt-hours?
Problem 34
Perform each of the following conversions: a. \(102^{\circ} \mathrm{F}\) to \({ }^{\circ} \mathrm{C}\) b. \(0 \mathrm{~K}\) to \({ }^{\circ} \mathrm{F}\) c. \(0^{\circ} \mathrm{C}\) to \(^{\circ} \mathrm{F}\) d. \(273 \mathrm{~K}\) to \({ }^{\circ} \mathrm{C}\)
Problem 35
The coldest temperature ever measured in the United States is \(-80^{\circ} \mathrm{F}\) on January 23,1971 , in Prospect Creek, Alaska. Convert that temperature to Celsius and Kelvin.
Problem 36
The warmest temperature ever measured in the United States is \(134^{\circ} \mathrm{F}\) on July 10,1913 , in Death Valley,
Problem 37
A chocolate chip cookie contains about \(200 \mathrm{kcal}\). How many kilowatt- hours of energy does it contain? How long could you light a 100-W light bulb with the energy from the cookie?
Problem 38
An average person consumes about \(2.0 \times 10^{3} \mathrm{kcal}\) of food energy per day. How many kilowatt-hours of energy are consumed? How long could you light a 40-W light bulb with that energy?
