Answer
$2.664J$
Work Step by Step
1. Calculate $\Delta T$:
$\Delta T = T_F - T_I$
$\Delta T = 25 - 10 = 15^ºC$
2. Using the specific heat formula:
$s = \frac{q}{m \times \Delta T}$
$2.22 = \frac{q}{80 \times 15}$
$2.22 = \frac{q}{1200}$
$2.22 \times 1200 = q$
$q = 2664J$
