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1. |
The pressure ratio across a gas turbine (for air, specific heat at constant pressure, cp = 1040 J/ kg K and ratio of specific heats = 1.4) is 10. If the inlet temperature to the turbine is 1200 K and the isentropic efficiency is 0.9, the gas temperature at turbine exit is ________K. |
A. | 679.4 K |
B. | 675.4 K |
C. | 689.4 K |
D. | 669.4 K |
Answer» B. 675.4 K | |