You are considering two pipes to connect liquid leaving a pump to the entrance to a reactor. For a given mass flowrate of liquid, how much operating cost would you save (or lose) by using 2. 5in schedule-40 pipe rather than 3-in schedule-40 pipe? The pump runs on electricity, and electricity costs \(\$ 0. 06 / \mathrm{kWh}\). The pump efficiency is \(80 \%\).