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Q RP 100% P2 Fri 7:44 PM Q O E Chrome File Edit View History Bookmarks People Window Help Mastering chemistry: Chapter 5 - Gases a secure https:// session.masteringchemistrycom/myct/itemView?assignmentProblemID=89499693 Chapter 5- Gases + The Behavior of Gas Molecules Resources & previous 14 of 17 next Rank the following gases in order of decreasing rate of effusion . + The Behavior of Gas Molecules Mastering Chel Rank from the highest to lowest effusion rate. To rank items as equivalentoverlap them. : Hints Reset Help Learning Goal o My Course To calculate the rms speed and relative rates of Course Horn effusion of gas molecules, In a given sample of gas, the particles move at e Text varying speeds. The root mean square speed (rms speed) of particles in a gas sample, u, is given by Dynamic St the formula Modules 3RT HCEHHone Highest rate of effusion Lowest rate of effusion User Setting where T is the Kelvin temperature, M is the molar mass in kg/mol, and R = 8.314 J/(mol- K) is Course Tool the gas constant. Effusion is the escape of gas molecules through a tiny hole into a vacuum. The Syllabus rate of effusion of a gas is directy related to the ms speed of the gas molecules, so its inversely proportional to the square root of its mass. The ms speed is related to kinetic energy, rather than average speed, and is the speed of a molecule possessing a kinetic energy identical to the average kinetic energy of the sample. Given its relationship to the mass of the molecule, you can conclude that the lighter the molecules of the gas the more rapidly it effuses. Mathematically, this can be expressed as effusion rate OX 1 The correct ranking cannot be determined. The relative rate of effusion can be expressed in terms of molecular masses mA and mB as Submit My Answers Give Up rate of gas A cffusion - mn AP 09 g E ID E® a 3 h 1 1 0 0 0 & F XO F soExplanation / Answer
rate of effusion is inversely proportional to molar mass
Lets list out molar mass of all given compounds
Molar mass of HCl = 36.5
Molar mass of F2 = 38.0
Molar mass of H2 = 2.016
Molar mass of C2H6O = 46.068
Molar mass of Ne = 20.18
Increasing order of molar mass is:
H2
Ne
HCl
F2
C2H6O
Same is the order of decreasing effusion rate
From fastest to slowest
H2
Ne
HCl
F2
C2H6O
Answer:
H2 Ne HCl F2 C2H6O
Feel free to comment below if you have any doubts or if this answer do not work
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