Question $4(1$ point$)$

In a plate$-$and$-$frame heat exchanger, the energy picked$-$up by the cold fluid $\backslash (\backslash$left$($q$\_\{$c$\}\backslash$right$)\backslash )$ is $555$ kW $,$ while the energy lost to the surroundings $(\backslash (\backslash$mathrm$\{$q$\}\_\{\backslash$text $\{$lost $\}\}\backslash ))$ is $75$ kW $.$ Determine the $\backslash \%$ efficiency of the heat exchanger.

Report a number between $0$ and $100$ with two decimal digits.

Your Answer:

Answer

units