An ideal gas expands in an adiabatic turbine from 1200 K and 900 kPa to 800 K.

Question:

An ideal gas expands in an adiabatic turbine from 1200 K and 900 kPa to 800 K. Determine the turbine inlet volume flow rate of the gas, in m3/s, required to produce turbine work output at the rate of 650 kW. The average values of the specific heats for this gas over the temperature range and the gas constant are cp 5 1.13 kJ/kg·K, cv = 0.83 kJ/kg·K, and R = 0.30 kJ/kg·K.