Solve Kinetic Energy & Velocity for Smallest Molecules: A

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SUMMARY

The discussion centers on determining which container holds the smallest average velocity molecules based on their kinetic energy. The kinetic energy formula, KE = 0.5mv², indicates that larger molecules (higher mass) possess lower average velocities at a constant temperature. The consensus suggests that Container B contains the smallest average velocity molecules due to its larger molecular mass compared to the others.

PREREQUISITES
  • Understanding of kinetic energy and its formula (KE = 0.5mv²)
  • Basic knowledge of gas laws and molecular behavior
  • Familiarity with concepts of mass and velocity in physics
  • Ability to analyze and interpret molecular size in relation to mass
NEXT STEPS
  • Study the relationship between temperature and molecular velocity in gases
  • Explore the implications of the ideal gas law on molecular motion
  • Learn about the Maxwell-Boltzmann distribution and its application to molecular speeds
  • Investigate the effects of molecular mass on diffusion rates in gases
USEFUL FOR

Students studying physics, particularly those focusing on thermodynamics and kinetic theory, as well as educators looking for examples of molecular behavior in gases.

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Homework Statement


Four Containers, kept at the same temperature, have different molecules (A,B,C,D) in gaseous form. The size of the molecules indicates their mass (larger the size, greater the mass). Recalling that Kinetic Energy (KE) is given by KE=.5mv2, choose the container with the smallest average velocity molecules
http://img171.imageshack.us/img171/7545/problem3ul3.jpg


Homework Equations





The Attempt at a Solution



I believe it is B, because larger molecules move slower, but I can't seem to find a way to prove it on my homework.
 
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Does it ask you to prove it?
 

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