Question

In a steady state steady flow process taking place in a device with a single inlet and a single outlet, the work done per unit mass flow rate is given by
$w=-{\int }_{inlet}^{outlet}vdp$, where v is the specific volume and p is the pressure. The expression for w given above

• A. is valid only if the process is both reversible and adiabatic
• B. is valid only if the process is both reversible and isothermal
• C. is valid for any reversible process
• D. is incorrect; it must be $w={\int }_{inlet}^{outlet}pdv$

Answer 1

The correct option is C is valid for any reversible process

(c)
The expression, $w=-{\int }_{inlet}^{outlet}vdp$ is valid for
reversible process, for open system.