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Question

In your kitchen, you have an aluminium pot with mass mp = 0.660 kg that contains V₁ = 0.630 L of water. The pot and water have been sitting for several hours and are at thermal equilibrium with the room, at a

temperature of TR = 21.9 °C.

You place the pot of water on a hot stove that transfers energy to the pot at a rate P = 2900 W, and leave it there for 8.20 minutes while you watch a video on your phone.

Part 1)

While you are watching the video, how much energy is transferred to the system as heat?

Part 2)

During this time, what mass of water will be turned to steam?

Part 3)

After the video has finished you notice that the water is boiling and turn the stove off. The pot (including its lid) has surface area 0.850 m² and emissivity e = 0.820. What is the net rate at which energy is transferred

from the pot to the environment by thermal radiation?

Fig: 1