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Gases Conceptual

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conceptual gas problems

conceptual gas problems

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Gases Conceptual Gases Conceptual Presentation Transcript

  • Chapter 10 Gases Chemistry, The Central Science , 10th edition Theodore L. Brown; H. Eugene LeMay, Jr.; and Bruce E. Bursten Donna Narsavage Heald Siena College Loudonville, NY  2006, Prentice-Hall
  • What is the pressure of the gas in the bulb?
    • P gas = P h
    • P gas = P atm
    • P gas = P h + P atm
    • P gas = P h - P atm
    • P gas = P atm - P h
  • What is the pressure of the gas in the bulb?
    • P gas = P h
    • P gas = P atm
    • P gas = P h + P atm
    • P gas = P h - P atm
    • P gas = P atm - P h
  • If 250 mL of NO is placed in a flask with O 2 , what volume of O 2 is needed for complete reaction?
    • 100 mL
    • 125 mL
    • 200 mL
    • 250 mL
    • Cannot be determined from the given information.
    2 NO ( g ) + O 2 ( g ) 2 NO 2 ( g )
  • If 250 mL of NO is placed in a flask with O 2 , what volume of O 2 is needed for complete reaction?
    • 100 mL
    • 125 mL
    • 200 mL
    • 250 mL
    • Cannot be determined from the given information.
    2 NO ( g ) + O 2 ( g ) 2 NO 2 ( g )
  • If an equal mass of each gas is put into a separate balloon, which will have the greatest volume? Assume that they are all the same temperature and pressure.
    • He
    • H 2
    • N 2
    • Ne
    • O 2
  • If an equal mass of each gas is put into a separate balloon, which will have the greatest volume? Assume that they are all the same temperature and pressure.
    • He
    • H 2
    • N 2
    • Ne
    • O 2
  • If equal masses of CH 4 , C 2 H 6 , and C 3 H 8 are placed in a flask, which of the following is true?
    • P CH 4 = P C 2 H 6 = P C 3 H 8
    • P CH 4 ~ P C 2 H 6 ~ P C 3 H 8
    • P CH 4 > P C 2 H 6 > P C 3 H 8
    • P CH 4 < P C 2 H 6 < P C 3 H 8
    • None of the above
  • If equal masses of CH 4 , C 2 H 6 , and C 3 H 8 are placed in a flask, which of the following is true?
    • P CH 4 = P C 2 H 6 = P C 3 H 8
    • P CH 4 ~ P C 2 H 6 ~ P C 3 H 8
    • P CH 4 > P C 2 H 6 > P C 3 H 8
    • P CH 4 < P C 2 H 6 < P C 3 H 8
    • None of the above
  • Arrange the gases according to increasing molecular speed.
    • He (25) < He (100) < Ne (25) < Ne (0)
    • He (25) < He (100) < Ne (0) < Ne (25)
    • Ne (0) < Ne (25) < He (25) < He (100)
    • Ne (25) < Ne (0) < He (100) < He (25)
    • Ne (0) < He (25) < Ne (25) < He (100)
    He (25°C) He (100°C) Ne (25°C) Ne (0°C)
  • Arrange the gases according to increasing molecular speed.
    • He (25) < He (100) < Ne (25) < Ne (0)
    • He (25) < He (100) < Ne (0) < Ne (25)
    • Ne (0) < Ne (25) < He (25) < He (100)
    • Ne (25) < Ne (0) < He (100) < He (25)
    • Ne (0) < He (25) < Ne (25) < He (100)
    He (25°C) He (100°C) Ne (25°C) Ne (0°C)
  • If a mixture of gas A and gas B is moved from flask 1 to flask 2, which of the following is true:
    • P A , P B , and P tot decrease
    • P A , P B , and P tot increase
    • P A and P B decrease, P tot remains the same
    • P A , P B , and P tot remain the same
    • P A and P B remain the same, P tot decreases
    flask 1 flask 2
  • If a mixture of gas A and gas B is moved from flask 1 to flask 2, which of the following is true:
    • P A , P B , and P tot decrease
    • P A , P B , and P tot increase
    • P A and P B decrease, P tot remains the same
    • P A , P B , and P tot remain the same
    • P A and P B remain the same, P tot decreases
    flask 1 flask 2