The pressure of the steady and adiabatic flow of an ideal gas through the pipe is reduced from P1 to P2. Its irreversibility/unit mass flow rate is given by:[where, T0 = environment temperature]

\({T_0}R\ln \frac{{{P_2}}}{{{P_1}}}\)

\({T_0}R\ln \frac{{{P_1}}}{{{P_2}}}\)

\({T_0}R\ln\left( {\frac{{{P_1} - {P_2}}}{{{P_2}}}} \right)\)

\({T_0}R\ln\left( {\frac{{{P_1}}}{{{P_1} - {P_2}}}} \right)\)

The pressure of the steady and adiabatic flow of an ideal gas through

1.	The pressure of the steady and adiabatic flow of an ideal gas through the pipe is reduced from P1 to P2. Its irreversibility/unit mass flow rate is given by:[where, T0 = environment temperature]
A.	\({T_0}R\ln \frac{{{P_1}}}{{{P_2}}}\)
B.	\({T_0}R\ln \frac{{{P_2}}}{{{P_1}}}\)
C.	\({T_0}R\ln\left( {\frac{{{P_1} - {P_2}}}{{{P_2}}}} \right)\)
D.	\({T_0}R\ln\left( {\frac{{{P_1}}}{{{P_1} - {P_2}}}} \right)\)
Answer» B. \({T_0}R\ln \frac{{{P_2}}}{{{P_1}}}\)