Helium at 810 r 45 ibfin2 and a velovity of 10 fts enters

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Reference no: EM13614078

Helium at 810 R, 45 Ibf/in^2, and a velovity of 10 ft/s enters an insulated nozzle operating at steady state and exits at 690 R, 25 Ibf/in^2. modeling helium as an ideal gas with k = 1.67 and R = 0.496 Btu/Ibm.R and Cp = 1.236 Btu/Lbm.R determine:

A)the velocity at the nozzle exit in ft/s

B) the isentropic nozzle efficiency

C)the rate of entropy production (deltaS) within the nozzle in Btu/lbm.R

Reference no: EM13614078

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