To start cooking dinner, Darell put two identical pots of water on a stove to boil. The amount of water in each pot was the same, but one pot had a lid on it and the other one did not. This table shows how the temperature of each pot of water changed over 4minutes.

Question

Pot of water Initial temperature (°C) Final temperature (°C)
Pot of water with a lid 21 74
Pot of water without a lid 20 53
The next time Darell boils a pot of water, he wants it to warm up quickly. What should he do to maximize the rate of thermal energy transfer into the pot of water?

A. put the lid on the pot
B.leave the lid off the pot
c either the rate of thermal energy transfer is the same whether or not the lids is on the pot

Answer 1

To maximize the rate of thermal energy transfer into the pot of water, Darell should A. put the lid on the pot.

This is because covering the pot with a lid reduces heat loss due to evaporation and convection, allowing the water to heat up more quickly. The data shows that the pot with the lid reached a higher final temperature (74°C) compared to the pot without a lid (53°C) within the same time frame (4 minutes), indicating that the lid helps to retain heat more effectively.