Chapter 16 - Temperature and Heat - Problems and Conceptual Exercises - Page 570: 84

$1.7min$

We start with the formula: $Q=mC\Delta T$ We plug in the known values to obtain: $Q=(0.65)(4186)(5.0)$ $Q=13.6KJ$ We know that $P=\frac{Q}{t}$ $\implies Q=Pt$ $\implies t=\frac{Q}{P}$ We plug in the known values to obtain: $t=\frac{13.6KJ}{(0.18hp)(\frac{746.7J/s}{hp})}$ $t=(101s)(\frac{1min}{60s})$ $t=1.7min$