Answer
$ P = 436.11 W$
Work Step by Step
The equation for work done if the temperature is unknown is
$|W| = \frac{|Q_H|}{K + 1}$
In one hour, $Q_H = 7.54 \times 10^6 J $ and $ K = 3.80$
$|W| = \frac{7.54 \times 10^6 J}{3.80 + 1}$
$ |W| = 1.57 \times 10^{6} J$
The rate of work done means the $power$
$ P = \frac{|W|}{\Delta t}$
$ P = \frac{1.57 \times 10^{6} J}{3600 s}$
$ P = 436.11 W$
