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# Mixture of Perfect Gases

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A mixture of perfect gases consist of 3kg of carbon monoxide and 1.5kg of nitrogen at a pressure of 0.1 MPa and a temperature of 298.15 K. Using table 5-1, find:
a) the effective molecular mass of the mixture
b) its gas constant
c) specific heat ratio
d) partial pressures
e) density

Please see the attachment for a complete description of table 5-1.

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Problem:

A mixture of perfect gases consist of 3kg of carbon monoxide and 1.5kg of nitrogen at a pressure of 0.1 MPa and a temperature of 298.15 K. Using table 5-1, find
a) the effective molecular mass of the mixture
b) its gas constant
c) specific heat ratio
d) partial pressures
e) density

Solution:

a) The formula for the molar mass of a mixture of gases is
( 1)
where M = molar mass [kg/kmol], Xk = molar fraction of species "k" in the mixture, which is given by the ratio
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