Let's see if you can do that in your head, knowing that 4.18 joules is 1 calorie. (a good number to remember)
80 joules is therefore very close to 20 calories.
Since the specific heat of water is 1.0 calories per degree-gram, 20 calories is enough to heat 2 grams 10 degrees C.
If you start at 15 C, and add 10, what do you end up with for the temperature?
when 84 joules of heat are added to 2.0 grams of water at 15 degrees C, what will be the final temperature of the water?
A. 50. degrees C
B. 5.0 degrees C
C. 25 degrees C
D. 15 degrees C
2 answers
jhb
1 answer