Carbon Dioxide Enters a Converging-Diverging Nozzle at 50 M/s, 600°C

Multiple Choice

Carbon dioxide enters a converging-diverging nozzle at 50 m/s, 600°C, and 450 kPa, and it leaves the nozzle at a supersonic velocity. The velocity of carbon dioxide at the throat of the nozzle is

A) 50 m/s
B) 186 m/s
C) 323 m/s
D) 431 m/s
E) 461 m/s