7. Gases
Root Mean Square Speed
7. Gases
Root Mean Square Speed - Video Tutorials & Practice Problems
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Root Mean Square Speed allows for the determination of the velocity of 1 type of gas molecule.
Root Mean Square Speed
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concept
Root Mean Square Speed
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example
Root Mean Square Speed Example 1
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Problem
ProblemDetermine which gas would have a root mean square speed of 515.59 m/s at 405 K.
A
Cl2
B
CO2
C
F2
D
NH3
E
CH4
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Problem
ProblemThe root mean square speed of gas molecules is 283.0 m/s at a given temperature T when the recorded molar mass is 42.0 g/mol. What would be the root mean square speed for a gas with a molar mass of 152.0 g/mol?
A
103.7 m/s
B
128.2 m/s
C
148.8 m/s
D
177.2 m/s
E
205.1 m/s
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PRACTICE PROBLEMS AND ACTIVITIES (13)
- The coldest temperature recorded at ground level on Earth was -89.2 °C at the Vostok Station in Antarctica. Wh...
- Radon (Rn) is the heaviest (and only radioactive) member of the noble gases. How much slower is the root-mean-...
- The temperature of a 5.00-L container of N2 gas is increased from 20 °C to 250 °C. If the volume is held const...
- (b) Calculate the rms speed of CO molecules at 25 °C.
- Calculate the root mean square velocity of F2, Cl2, and Br2 at 298 K.
- The average temperature at an altitude of 20 km is 220 K. What is the average speed in m/s of an N2 molecule ...
- Calculate the average speed of a nitrogen molecule in m/s on a hot day in summer 1T = 37 °C2 and on a cold da...
- At what temperature (°C) will xenon atoms have the same average speed that Br2 molecules have at 20° C?
- At what temperature does the average speed of an oxygen molecule equal that of an airplane moving at 580 mph?
- Which has a higher average speed, H2 at 150 K or He at 375 °C?
- Which has a higher average speed, a Ferrari at 145 mph or a gaseous UF6 molecule at 145 °C?
- A big-league fastball travels at about 45 m/s. At what temperature (°C) do helium atoms have this same average...
- You have a sample of gas at 0 C. You wish to increase the rms speed by a factor of 3. To what temperature shou...