Air enters a length of constant area pipe with (p_{1}=200) (mathrm{kPa}(mathrm{abs}), T_{1}=500 mathrm{~K}), and (V_{1}=400 mathrm{~m} /

Question:

Air enters a length of constant area pipe with $p_{1}=200$ $\mathrm{kPa}(\mathrm{abs}), T_{1}=500 \mathrm{~K}$, and $V_{1}=400 \mathrm{~m} / \mathrm{s}$. If $500 \mathrm{~kJ} / \mathrm{kg}$ of energy is removed from the air by frictionless heat transfer between sections (1) and (2), determine $p_{2}, T_{2}$, and $V_{2}$. Sketch a temperature-entropy diagram for the flow between sections (1) and (2).