A 20 gram piece of metal is added to a sample of 100 grams of water inside a calorimeter. If the metal is at a temperature of 125° Celsius and the water is at 20° Celsius, which of the following best describes what will occur inside the calorimeter?

The final temperature of the water will be 105° Celsius.
The energy lost by the metal equals the energy gained by the water.
The final temperature of the water will be lower than the initial temperature.
The temperature gained by the water will equal the temperature lost by the metal.

Question

A 20 gram piece of metal is added to a sample of 100 grams of water inside a calorimeter. If the metal is at a temperature of 125° Celsius and the water is at 20° Celsius, which of the following best describes what will occur inside the calorimeter?

	The final temperature of the water will be 105° Celsius.
	The energy lost by the metal equals the energy gained by the water.
	The final temperature of the water will be lower than the initial temperature.
	The temperature gained by the water will equal the temperature lost by the metal.

anonymous · Answer

@aaronq

anonymous · Answer

@dtan5457

anonymous · Answer

i think its 	The temperature gained by the water will equal the temperature lost by the metal.

anonymous · Answer

We can't say what he final temperature of the system will be without knowing what metal it is (or at least it's specific heat/heat capacity). However, in a closed system, energy is always conserved.

The energy the metal loses (in the form of heat) will equal the energy gained by the water.