1 Select the wrong statement regarding energy analysis of steady-flow systems. (a) The mass content of control volume during a steady-state process is constant. (b) The energy content of control volume during a steady-state process is constant. (c) A steady-flow device cannot involve more than one inlet and one outlet. (d) The fluid properties may be different at different inlets and exits during a steady-flow process. (e) The fluid properties at an inlet or exit remain constant during a steady-flow process.