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Air in a piston-cylinder assembly undergoes a process from state 1, where T1= 300 K, p1= 100 kPa, to state 2 where T2=500 K, p2=650 kPa. Using the ideal gas model for air, determine the change in specific entropy between these states, in kJ/kg*K, if the process occurs
a) without irreversibilities
b) with irreversibilities
if a system has two redundant safety systems with failure rates of 0.16 and 0.22 faults per year respectively what is
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