Answer:
At steady state output will be 2
Explanation:
We have given transfer function 
Input is unit step so 
We know that
, here
, is output
So output 

Taking 12 common from denominator

Now using partial fraction



On comparing coefficient A=4 and B = -2
Putting the values of A and B in Y(S)

Now taking inverse la place

Steady state means t tends to infinite
So output at steady state = 
Answer: Isentropic process is the process in fluids which have a constant entropy.
Explanation: The isentropic process is considered as the ideal thermodynamical process and has both adiabatic as well as reversible processes in internal form.This process supports no transfer of heat and no transformation of matter .The entropy of the provided mass also remains unchanged or consistent.These processes are usually carried out on material on the efficient device.