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  • Introduction to the Gas Laws
    • What is Pressure?
    • What is Vacuum?
    • Composition of Air
    • What is Partial Pressure?
    • Dalton's Law
    • What is Gas?
    • What is Vapour Pressure?
    • What is mean free path?
    • The mean free path for some gases at 20° C and different pressures.
    • Avogadro's Law
    • What is a Mole?
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    • Avogadro´s Number
    • The relative masses of molecules
    • Boyle's Law
    • Charles' Law
    • The Law of Gay-Lussac
    • The Universal Gas Law
    • The Universal Gas Constant
    • The Individual Gas Constant
    • Individual gas constants for some gases (J/kg x K)
    • The Greek Alphabet
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The Individual Gas Constant

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If the universal gas constant is divided by the relative mass number (M) of the molecule of the gas in question, the result is the individual gas constant Ri for this gas.

 Ri = \frac{R}{M} = \frac{p \times V}{\nu \times M \times T} = J/kg \times K

 
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