See Fig.2.4a, let the gases flowing through the nozzle control volume be perfect with Cp = 1.004kJ/kg.K
Determine V9 if T5 = 1000K, T9 = 670K and V5 = 120ms^-1.
I've detailed the equations in the attached pdf for clarity.
The Attempt at a Solution
See attached pdf. The question paper has the answer as 822.8m/s, but I'm consistently getting 120m/s. Where am I going wrong?