Hydrogen

(R

)

=

(

4.124)

flows isentropicallyin a nozzle from initial pressure of

500kPa

, with negligible velocity, to a final pressure of

100kPa

. Because the pressure falls during its journey through the nozzle, this flow is called an expansion. The initial gas temperature is

500K

. Assume steady flow, with hydrogen behaving as a perfect gas with constant specific heats

cp=14.5

. Determine the final velocity of the gas.

Hydrogen (R=4.124) flows isentropicallyin a nozzle from initial pressure of 500kPa, with negligible velocity, to a final pressure of 100kPa. Because the pressure falls during its journey through the nozzle, this flow is called an expansion. The initial gas temperature is 500K. Assume steady flow, with hydrogen behaving as a perfect gas with constant specific heats cp=14.5. Determine the final velocity of the gas