Air enters a 0.5 -ft inside diameter duct with (p_{1}=20) psia, (T_{1}=80^{circ} mathrm{F}), and (V_{1}=200 mathrm{ft} /

Question:

Air enters a 0.5 -ft inside diameter duct with $p_{1}=20$ psia, $T_{1}=80^{\circ} \mathrm{F}$, and $V_{1}=200 \mathrm{ft} / \mathrm{s}$. What frictionless heat addition rate in Btu/s is necessary for an exit gas temperature $T_{2}=1500{ }^{\circ} \mathrm{F}$ ? Determine $p_{2}, V_{2}$, and $\mathrm{Ma}_{2}$ also.

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