For liquid cyclohexane at $25\backslash$deg C$,$ the

density is $778\mathrm{.}1$ kg$/$m$3$ and the viscosity is $0\mathrm{.}00102$ Pa$-$s$.$ The molecular weight is $84\mathrm{.}16.$

$4-7.$ Cyclohexane flows through $100$ m of horizontal pipe. The pipe is $3-$cm ID commercial

steel pipe with light rust. The upstream supply pressure is $7$ barg and the downstream

pressure is $1$ atm. Estimate the flow rate, in kg$/$s$,$ through the pipe.

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