Ideal gaz aralashmalari


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Ideal gas mixtures
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Ideal gas mixtures

Properties of gas mixtures. In practice, for example, in the calculation of internal combustion engines, boilers, etc., and in many technological processes, gas mixtures, rather than pure monohydric gases, are used as the working fluid.

Properties of gas mixtures. In practice, for example, in the calculation of internal combustion engines, boilers, etc., and in many technological processes, gas mixtures, rather than pure monohydric gases, are used as the working fluid.

Boyle-Marriott and Gay-Lussac laws can also be applied to gas mixtures. Therefore, the state equation for gas mixtures can be written as follows

pVap = map Rap T.

Here

Vap - volume of mixture;

Rap - gas constant of the mixture;

Gap - the mass of the mixture

r - the total pressure of the mixture;

Dalton's law.

Each gas in the mixture traps in the container as if there were no other gases and produces its own pressure fraction (partial pressure). Thus, for each gas in the mixture, we can write the equation of state depending on its partial pressure: ri Vap = mi Ri T 

Here

Vap - volume occupied by the mixture;

ri - is the partial pressure of the extracted gas;

mi and Ri - are the masses of the gas obtained

separately and the gas constant, respectively.

According to Dalton's law

The pressure (r) of a mixture is equal to the sum of the partial pressures of the individual gases.

r1, r2, …rn - partial pressures of the gases obtained

separately.

The composition of the gas mixture.

The composition of the gas mixture can be given in basically 2 different ways

  • The ratio of the mass of a separate (one) gas to the total mass of the mixture is called the mass fraction of the gas in the mixture and is denoted by "g".
  • map - the total mass of the mixture

    map = m1 + m2 + … mn The sum of the pieces

    of mass is 1:

2) The ratio of the given volume of gas obtained separately to the total volume occupied by the mixture is called the volume fraction of the gas in the mixture and is denoted by the letter "r".

2) The ratio of the given volume of gas obtained separately to the total volume occupied by the mixture is called the volume fraction of the gas in the mixture and is denoted by the letter "r".

Vap - the volume occupied by the mixture.

The sum of the volume fractions is also 1:

r1 + r2 +…+ rn =

In some cases, the composition of the gas mixture can be given by the number of kilomoles.

Thank you for your attention


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