Question
(a) How much heat transfer is necessary to raise the temperature of a 0.200-kg piece of ice from $-20.0^\circ\textrm{C}$ to $130^\circ\textrm{C}$, including the energy needed for phase changes? (b) How much time is required for each stage, assuming a constant 20.0 kJ/s rate of heat transfer? (c) Make a graph of temperature versus time for this process.
1. $6.19 \times 10^5 \textrm{ J}$
2. $t_1 = 0.418 \textrm{ s}$
$t_2 = 3.34 \textrm{ s}$
$t_3 = 4.19 \textrm{ s}$
$t_4 = 22.6 \textrm{ s}$
$t_5 = 0.456 \textrm{ s}$
$t_T = 31.0 \textrm{ s}$
3. please see the graph in the solution video.
Solution Video