Table B$.2$ lists values of the heat capacity of liquid ethanol

at two temperatures. Use the tabulated values to derive a

linear expression for $Cp(T)$ then use the derived expression

and data in Table B$.1$ to calculate the heat transfer rate

$(kW)$ required to bring a stream of liquid ethanol flowing at

$55\mathrm{.}0\frac{L}{s}$ from $20C$ to the boiling point at $1$atm.

A stream of water vapor flowing at a rate of $250mo\frac{l}{h}$ is

brought from $600C$ and $10$ bar to $100C$ and $1$atm.

Estimate the required cooling rate $(kW)$ three ways: $($i$)$

from the steam tables, $($ii$)$ using heat capacity data in Table

B$\mathrm{.}2,$ and $($iii$)$ using the Enthalpy function of APEx.