In an experimaental set-up, air flows between two stations P and Q adiabatically. The direction of flow depdns on the pressure and temperature conditions maintained at P and Q. The conditions at P are 150kPa and 35K. The temperature at station Q is 300K. The following are the properties and relations pertaining to air:Specific heat at constant pressure,cp=1.005kG/kgK;Specific heat at constnat volume,cv=0.718kJ/kgK;Characteristic gas constnat,R=0.287kJ/kgKEnthalpy, h=cpT.Internal energy, u=cvT.If the air has to flow from station P to station Q, te maximum possible value of pressure in kPa at station Q is close to

In an experimaental set-up, air flows between two stations P and Q adi

1.	In an experimaental set-up, air flows between two stations P and Q adiabatically. The direction of flow depdns on the pressure and temperature conditions maintained at P and Q. The conditions at P are 150kPa and 35K. The temperature at station Q is 300K. The following are the properties and relations pertaining to air:Specific heat at constant pressure,cp=1.005kG/kgK;Specific heat at constnat volume,cv=0.718kJ/kgK;Characteristic gas constnat,R=0.287kJ/kgKEnthalpy, h=cpT.Internal energy, u=cvT.If the air has to flow from station P to station Q, te maximum possible value of pressure in kPa at station Q is close to
Answer» In an experimaental set-up, air flows between two stations $P$ and $Q$ adiabatically. The direction of flow depdns on the pressure and temperature conditions maintained at $P$ and $Q$ . The conditions at $P$ are $150 k P a$ and $35 K$ . The temperature at station $Q$ is $300 K$ . The following are the properties and relations pertaining to air: Specific heat at constant pressure, $c_{p} = 1.005 k G / k g K;$ Specific heat at constnat volume, $c_{v} = 0.718 k J / k g K;$ Characteristic gas constnat, $R = 0.287 k J / k g K$ Enthalpy, $h = c_{p} T .$ Internal energy, $u = c_{v} T .$ If the air has to flow from station $P$ to station $Q$ , te maximum possible value of pressure in $k P a$ at station $Q$ is close to