Refrigerant-134a enters a 28-cm diameter pipe steadily at 200 kPa and 20C with a velocity of 5

Question:

Refrigerant-134a enters a 28-cm diameter pipe steadily at 200 kPa and 20°C with a velocity of 5 m/s. The refrigerant gains heat as it flows and leaves the pipe at 180 kPa and 40°C. Determine
(a) The volume flow rate of the refrigerant at the inlet,
(b) The mass flow rate of the refrigerant, and
(c) The velocity and volume flow rate at the exit.