Learning Goal: To practice Problem-Solving Strategy 20.1 Heat Engines. PartA Steam at a temperature Th 205 °C and p-1.00 atm enters a heat engine at an unknown flow rate. After passing through the heat engine, it is released at a temperature Te = 100 °C and p 1.00 atm. The measured power output P of the engine is 310 J/s, and the exiting steam has a heat transfer rate of Hc 2900 J/s Find the efficiency e of the engine and the molar flow rate n/t of steam through the engine. The constant pressure molar heat capacity Cp for steam is 37.47 J/(mol-K) Which of the following quantities are known?
A) The temperature of steam as it leaves the engine, Tc The molar flow rate of steam, n/t
B) The constant pressure molar heat capacity of steam, Cp
C) The heat transfer rate for steam leaving the engine, HC
D) The power output of the engine, I
E) The heat transfer rate for steam entering the engine, Hu
F) The efficiency of the engine, e Ea The temperature of the steam as it enters the engine.