$(3)$

$12\mathrm{.}24$ Argon $($Ar$),$ at $300K,1$ bar with a mass flow rate of $1k\frac{g}{s}$ enters the insulated mixing chamber shown in Fig. P$12\mathrm{.}24$ and mixes with carbon dioxide $(C{O}_2)$ entering as a separate stream at $575K,1$ bar with a mass flow rate of $0\mathrm{.}5k\frac{g}{s}.$ The mixture exits at $1$ bar. Assume ideal gas behavior with $k=1\mathrm{.}67$ for Ar and $k=1\mathrm{.}25$ for $C{O}_2.$ For steady$-$state operation, determine

a$.$ the molar analysis of the exiting mixture.

b$.$ the temperature of the exiting mixture, in K $.$

c$.$ the rate of entropy production, in $k\frac{W}{K}.$

$(3)$

$12\mathrm{.}24$ Argon $($Ar$),$ at $300K,1$ bar with a mass flow rate of $1k\frac{g}{s}$ enters the insulated mixing chamber shown in Fig. P$12\mathrm{.}24$ and mixes with carbon dioxide $(C{O}_2)$ entering as a separate stream at $575K,1$ bar with a mass flow rate of $0\mathrm{.}5k\frac{g}{s}.$ The mixture exits at $1$ bar. Assume ideal gas behavior with $k=1\mathrm{.}67$ for Ar and $k=1\mathrm{.}25$ for $C{O}_2.$ For steady$-$state operation, determine

a$.$ the molar analysis of the exiting mixture.

b$.$ the temperature of the exiting mixture, in K $.$

c$.$ the rate of entropy production, in $k\frac{W}{K}.$