ou have 500 grams of water at 80° Celsius. You want to lower the temperature of the water to as close to 60° Celsius as possible. Which of the following would get the 500 grams of water the closest to 60° Celsius?
adding 80 grams of 40° Celsius water
adding 100 grams of 50° Celsius water
adding 250 grams of 60° Celsius water
adding 100 grams of 70° Celsius water

If you drop a 50 gram piece of metal with a temperature of 125° Celsius into 1000 grams of water at 20° Celsius, what best describes what would occur?
More heat will be lost by the metal than gained by the water.

Question

ou have 500 grams of water at 80° Celsius. You want to lower the temperature of the water to as close to 60° Celsius as possible. Which of the following would get the 500 grams of water the closest to 60° Celsius?
adding 80 grams of 40° Celsius water
adding 100 grams of 50° Celsius water
adding 250 grams of 60° Celsius water
adding 100 grams of 70° Celsius water

If you drop a 50 gram piece of metal with a temperature of 125° Celsius into 1000 grams of water at 20° Celsius, what best describes what would occur? 
More heat will be lost by the metal than gained by the water.

anonymous · Answer

The temperature of the water will be greater than the amount of heat lost by the metal.
		
The temperature change of the metal will equal the temperature change of the water.
		
The heat lost by the metal will equal the heat gained by the water.