### Problem 5-7Air enters a 28-cm diameter pipe steadily at 200 kPa and 20°C with a velocity of 5 m/s. Air is heated as it flows, and leaves the pipe at 180 kPa and 40°C. Determine:(a) The volume flow rate of air at the inlet.(b) The mass flow rate of air.(c) The velocity and volume flow rate at the exit.#### Diagram ExplanationThe diagram depicts a horizontal pipe where air flows from left to right. At the inlet on the left, air conditions are specified as 200 kPa, 20°C, and a velocity of 5 m/s. The air is heated while passing through the pipe, denoted by an arrow labeled "Q." At the outlet on the right, the conditions change to 180 kPa and 40°C. The figure is labeled as "FIGURE P5-7."This setup involves calculations related to fluid dynamics and thermodynamics concerning changes in pressure, temperature, and flow rates.

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5-7 Air enters a 28-cm diameter pipe steadily at 200 kPa and 20°C with a velocity of 5 m/s. Air is heated as it flows, and leaves the pipe at 180 kPa and 40°C. Determine (a) the volume flow rate of air at the inlet, (b) the mass flow rate of air, and (c) the velocity and volume flow rate at the exit. Air 180 kPa 40°C 200 kPa 20°C 5 m/s

5-7 Air enters a 28-cm diameter pipe steadily at 200 kPa and 20°C with a velocity of 5 m/s. Air is heated as it flows, and leaves the pipe at 180 kPa and 40°C. Determine (a) the volume flow rate of air at the inlet, (b) the mass flow rate of air, and (c) the velocity and volume flow rate at the exit. Air 180 kPa 40°C 200 kPa 20°C 5 m/s