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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?
    • What is a leak rate?
    • 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
  • The Flow of Gases in Leaks
  • Helium Leak test on Heat Exchangers
  • Leak Detection and Measuring Methods
  • Leak Detection with Tracer Gas Methods
  • Leak Test with Laser Beam
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The universal Gas Law

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p \cdot V = \nu \cdot R \cdot T

Greek ν(Ny) is the symbol for the quantity in mol or kmol.

The universal gas law is not restricted like Charles´, Boyle´s and Avogadro´s laws.

The temperatures in Charles law and in the universal gas law are inserted as absolute temperatures in Kelvin.

P =
V =
T =
ν =
R =
pressure
volume
Temperatur
quantity
universal gas constant
N/m2= Pa
m3
K
mol
 
1 bar = 105Pascal
cubic metre
Kelvin
 
 
 
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