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INPUT   DATA

♥ EXAMPLE Of Input/Output

Title

Molecular weight of gas, M		kg/kmol
Temperature, T		°C

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OUTPUT   VARIABLES   &   GRAPHS

Variables	Values	Units
♦  Mass per particle, mo		10-26kg
♦  Speed of molecule, vrms		m/s

Speed Of A Gas Molecule

Kinetic theory considers matter to be composed of particles or molecules in a state of continual motion. For gas, the molecules are in random motion with velocities ranging from zero to very large values. The root-mean-square of the gas molecules can be represented by the equation:

   v_rms = √[3k_BT/m_o]

   m_o = M/N_A

where
     M = molecular of the gas
     T = absolute temperature of gas
     m_o = mass of one particle of gas
     v_rms = root mean square speed of gas
     N_A = Avogadro's number = 6.022x10²⁶ particles/kmol
     k_B = Boltzmann's constant = 1.381x10^-23 J/K

Tips

    ◊ Use link EXAMPLE Of Input/Output  to demo data entry expectations and results; you may edit & use it as starting point

BIBLIOGRAPHY

• Bueche FJ & Hecht E; College Physics, Schaum's Outlines Series; McGraw Hill, New York, 1997.
• Lowe TL & Rounce JF; Calculations For A-Level Physics; Nelson Thornes Ltd, Cheltenham, UK, 2002