1. How much energy is need to change 125 grams of water from 25 oC to...

Question

Question

1. How much energy is need to change 125 grams of water from 25 oC to 98 oC ?

2. How much energy is given off when 200 grams of ethanol are cooled from 65 oC to 13 oC? Specific Heat of ethanol is 2.46 J/g oC.

3. The heat capacity of iron is 0.444 J/goC. What is the final temperature when 20 grams of iron wire at 80 oC losses 577.2 J?

4. A 56.0 grams of copper cylinder at 295 oC is put into 500 mL of water at 22.5 oC. What is the final temperature of the water and the copper?

science chemistry

Answer 1

Answer #1

Answer 2

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