Matter and Change: Content Mastery Essay

T194 Chemistry: Matter and Change Study Guide for Content Mastery Answer Key 13 Gases compared to the volume of the sample. kinetic energy is lost. d. The collisions between gas particles are elastic random between gas particles. c. Gas particles are in constant and forces Copyright O Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc. Chemistry: Matter and Change ??? Chapter 13 directly related to the square root of its molar mass. 12. Graham’s law of effusion states that the rate of effusion for a gas is 1 1 . During effusion. a gas escapes through a tiny opening into a vacuum. 10.

Lighter gas particles diffuse less rapidly than do heavier gas particles. Y I ne OITTuslon 0T a gas Is caused Dy tne random motion 0T 8. A gas can flow into a space occupied by another gas. 7. The density of a gas decreases as it is compressed. rtlcles 0T tne gas. 6. The random motion of gas particles causes a gas to expand until it fills its container. particles of a gas. Study Guide for Content Mastery false true 5. Gases are less dense than solids because there is a lot of space between the For each statement below, write true or false. 2rnv2 ; that is, no motion. is a measure of the average kinetic energy of the particles in a

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In your textoooK, read aoout explalnlng tne Denavlor 0T gases. sample of matter. Temperature 3. The kinetic energy of a particle is represented by the equation 4. Class b. Because gas particles are far apart, there are no significant attractive or repulsive small a. In a sample of a gas, the volume of the gas particles themselves is very 2. The kinetic-molecular theory makes the following assumptions. motion 1 . The kinetic molecular theory describes the behavior of gases in terms of particles in Complete each statement. In your textbook, read about the kinetic-molecular theory. section 13. 1

Date STUDY GUIDE FOR CONTENT MASTERY States of Matter CHAPTER Name 73 b. mass. c. time. b. manometer c. sphygmomanometer d. thermometer d. volume. c. density of the liquid in the column. b. atmospheric pressure. b. 101. 3 kPa. c. 147 psi. d. temperature of the gas. c. size of the container. d. 706 torr. b. 79. 9 kPa c. 102. 3 kPa. 74 The atmospheric pressure has increased. 23. What does it mean when the level of mercury rises in the column? gravity and atmospheric pressure mercury In tne column? 22. What are the two opposing forces that control the height of the 21 . Who invented this instrument?

Evangelista Torricelli 20. What instrument is illustrated in the figure? barometer Use the figure to answer the following questions. a. 62. 4 kPa Atmospheric pressure 760 mm Pressure exerted by mercury column Vacuum d. 124. 7 kPa of nitrogen (N2) in the sample if the combined partial pressures of the other gases is 22. 4 kPa? 19. The pressure of a sample of air in a manometer is 102. 3 kPa. What is the partial b. identity of the gas. a. concentration of the gas. 18. The partial pressure of a gas depends on all of the following EXCEPT the a. 76 mm Hg. 17. One atmosphere is equal to a pressure of d. a 0b b. ight of the mercury column in the open-end arm a. height of the mercury column in the closed-end arm quantities? 16. The pressure of the gas in a manometer is directly related to which of the following d. diameter of the column tube. a. altitude. 15. The height of the liquid in a barometer is affected by all of the following EXCEPT the a. barometer 14. What is an instrument designed to measure atmospheric pressure? a. area. 13. Pressure is defined as force per unit Circle the letter of the choice that best completes the statement or answers the question. In your textbook, read about gas pressure. Section 13. 1 continued

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