Donald prepared two pies and put them next to each other in the oven. The pies were identical, but one was in a glass pie pan and one was in a ceramic pie pan. This table shows how the temperature of each pie changed over 20minutes.
Pie Initial temperature (°C) Final temperature (°C)
Pie in the ceramic pan 24 48
Pie in the glass pan 25 49
The next time Donald puts a pie in the oven, he wants the pie to warm up quickly. What should he do to maximize the rate of thermal energy transfer into the pie?