Victory for the ACT Student Text 15e

L ESSON 1 | D ATA R EPRESENTATION • 303 32. Which of the following statements best describes the relationship between nitrogen gas molecule speeds and the temperature of the gas? F. As gas temperature increases, the range of molecular speeds increases and the most probable speed decreases. G. As gas temperature decreases, the range of molecular speeds decreases and the most probable speed decreases. H. As molar mass of gas increases, the range of molecular speeds decreases and the most probable speed decreases. J. As molar mass of gas decreases, the range of molecular speeds increases and the most probable speed increases. 33. According to the information provided, as the molar mass of a gas increases: A. the number of particles at greater speeds increases. B. the number of particles in the gas increases. C. the most probable molecular speed decreases. D. the most probable molecular speed increases. 34. Argon is a gas with molar mass of 39.95 grams/mole. Based on the information provided, the most probable molecular •’‡‡† ‘ˆ ƒ”‰‘ ‘Ž‡…—Ž‡• ƒ– ͳͲͲ ‹•ǣ F. less than 250 meters/second. G. between 250 and 450 meters/second. H. between 450 and 800 meters/second. J. over 800 meters/second.

31. Based on the information provided, which of the following graphs best represents the most probable molecular speed for nitrogen as a function of gas temperature? A.

Passage Perfect Don’t forget to preview both the text and the graphics in the passage before answering the accompanying questions. Without the critical information in the text of the passage it is impossible to answer item #31, for example.

B.

C.

D.