An Ideal Gas Mixture of Helium and Argon Gases with Identical

Multiple Choice

An ideal gas mixture of helium and argon gases with identical mass fractions enters a turbine at 1500 K and 1 MPa at a rate of 0.25 kg/s, and expands isentropically to 200 kPa. The power output of the turbine is

A) 366 kW
B) 474 kW
C) 570 kW
D) 743 kW
E) 1630 kW