Question

AS = -8.3143(0.375 ln 0.375 +0.625 In 0.625)
= 5.49 kJ/K
Example 10.19 A mixture of ideal gases consists of 3 kg of nitrogen and
5 kg of carbondioxide at a pressure of 300 kPa and a temperature of 20°С. Find
(a) the mole fraction of each constituent, (b) the equivalent molecular weight of
the mixture, (c) the equivalent gas constant of the mixture, (d) the partial pressures
and the partial volumes, (e) the volume and density of the mixture and the
and c, of the mixture.
If the mixture is heated at constant volume to 40°C, find the changes in internal
energy, enthalpy and entropy of the mixture. Find the changes in internal energy
enthalpy and entropy of the mixture if the heating is done at constant pressure
Take y for CO, and N, to be 1.286 and 1.4, respectively.
[LO 10.12.10.13
]
Solution (a) Since mole fraction​

Answer 1

Answer:

AS = -8.3143(0.375 ln 0.375 +0.625 In 0.625)

= 5.49 kJ/K

Example 10.19 A mixture of ideal gases consists of 3 kg of nitrogen and

5 kg of carbondioxide at a pressure of 300 kPa and a temperature of 20°С. Find

(a) the mole fraction of each constituent, (b) the equivalent molecular weight of

the mixture, (c) the equivalent gas constant of the mixture, (d) the partial pressures

and the partial volumes, (e) the volume and density of the mixture and the

and c, of the mixture.

If the mixture is heated at constant volume to 40°C, find the changes in internal

energy, enthalpy and entropy of the mixture. Find the changes in internal energy

enthalpy and entropy of the mixture if the heating is done at constant pressure

Take y for CO, and N, to be 1.286 and 1.4, respectively.

[LO 10.12.10.13

]

Solution (a) Since mole fraction

3.990