Test

Unit 3-6 Test p 153-171      NAME__________________________Hr._____ (100 points)

                                                         Multiple Choice/Guess

1._____       Which layer of the atmosphere absorbs most harmful rays?                                 

                     A) Stratosphere.                                      C) Troposphere.

B) Thermosphere.                                        D) Mesosphere.

2._____       Which layer of the atmosphere has extremely strong winds?

                     A) Ionosphere.                                                    C) Troposphere.

B) Ozone layer.                                           D) Mesosphere.

3._____       When do gases most likely behave ideally?

                     A) High temperature and high pressure.

                     B) Low temperature and low pressure.

                     C) High temperature and low pressure.

                     D) Low temperature and high pressure.

4._____       Which of the following gases has the lowest concentration in the atmosphere?

                     A) Nitrogen                                     C) Oxygen

                     B) Argon                                         D) Carbon dioxide

5._____       Which law deals only with temperature and volume?

                     A) Charles' Law                              C) Boyle's Law

                     B) Dalton's Law                              D) Graham's Law

6._____       Which is/are true of the kinetic molecular theory?

                     A) The collisions are perfectly elastic.

                     B) Gases are tiny and basically have no mass.

                     C) Gases are in motion, and vary in kinetic energy.

                     D) All of the above are true of the molecular theory.

7._____       Which law/principle deals with airplanes and birds flying and landing?

                     A) Charles' Law                              C) Boyle's Law

                     B) Bernoulli’s principle                  D) Archimedes’ principle

8._____       Which is/are true of ideal gases?

                     A) The collisions are perfectly elastic.

                     B) Ideal gases have volume.

                     C) Ideal gases have mass.

                     D) All are true of ideal gases.

9._____       Standard temperature is:

                     A) 0 o F                                           C) 32 o C

                     B) 273 K                                         D) All the above

10._____     One mole of any gas basically has ____ for a volume at standard pressure.

                     A) 22.4 L                                        C) 0 L

                     B) 273 L                                          D) 101.3 L.

                                             True or False

11._____     Increased temperature will give a gas more Kinetic Energy.

12._____     Most of the universe is plasma.

13._____     Diffusion is things moving from a high concentration to a low concentration.

14._____     There are over 100,000 Pascals in 1 atmosphere.

15._____     Air is most dense near the earth's surface.

16._____     A pressure cooker allows the food to cook faster because it gets hotter.

17._____     In the pressure law, the label for pressure is kPa.

18._____     At absolute zero, there is theoretically no kinetic energy.

19._____     As the number of particles increases, the pressure increases.

20._____     The air inside the ship helps it float.

                                             Essays/Problems SHOW ALL WORK FOR THE PROBLEMS

21. Convert the following to standard pressure and calculate the new volume.(Watch the labels!!) (10 points)

A)  800 L  at 202.6 kPa                               B) 400 cm3  at 76 mmHg                            C)  500 ml at 5 atm

22. Calculate the following volumes at standard temperature.                  (10 points)

A) 600 cm3  at 27.3 K                                 B) 300 cm3 at 546 K                                   C) 800 L  at 2730 K

23. What is the new temperature if the volume is 40 cm3and the old volume was 200 cm3 at 20 K?(3pts)

24. The following objects have what force pulling on them?                    (6 points)

A) 10 kg                                                                  B) 1000 g

25. Calculate the volume at STP for: (6 points)

A) 6 moles. (3 points)

 B) 0.1 mole (3 points)

26. Name four laws/principles discussed in the chapter, and then give an example that demonstrates each one.   Some of these may have been demonstrated in class!!  NOT an equation or math problem! (10 points)

27. List three facts about ideal gases, three facts about real gases, then list three gases. (10 points)

28. What is the total atmospheric pressure and the % of each if the air contains 20 KPa O2, 10 KPa Cl2, 15 KPa Ar, and 15 KPa H2O?   (10 points)

29. List five facts from the readings on page 167. (5 points)

30.  List four reasons the atmosphere is so important, list two ways we are damaging the atmosphere, then list why we should be so concerned about all the pollution we are releasing into the atmosphere.  (10 points)

OR

Name four layers of the atmosphere and list one unique quality about each. (10 points) Circle your choice