Question

Suppose the block in part D is made of steel(iron, c = 449 J/kg-K) and has a mass of 0.500 kg and has an initial temperature of 300.0°C. The block is placed into the insulated beaker that holds 50.0 ml of water at 20.0°C. If the metal block were to cool to 100.0°C, how much energy would be transferred to the water?

(CONTEXT: A metal block is heated for a long period of time over a gas flame. The block is then removed and placed into an insulated beaker of water that is at room temperature (20°C). The beaker is then sealed.)

D:

I would recommend examining Example 12.20 carefully. These types of questions can be both conceptually and mathematically challenging. With Example 12.20 in mind, consider the following case. A metal block is heated for a long period of time over a gas flame. The block is then removed and placed into an insulated beaker of water that is at room temperature (20 C). The beaker is then sealed. Which of the following choices are possible final states of the block-water system? Select all that apply. The final temperature could be 100°C with all of the water being converted to steam. The final temperature could be 100 C without any of the water being converted to steam. The final temperature could be 100° C with only some of the water being converted to steam. The final temperature could be less than 100°C without forming any steam The final temperature could be less than 100 C with some water being converted to steam. The final temperature could be higher than 100°C without any of the water being converted to steam The final temperature could be higher than 100 C with only some of the water being converted to steam. The final temperature could be higher than 100°C with all of the water being being converted to steam.

Answer 1

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