How many calories would it take to heat 1 ml of water from 41 degrees celsius to 62 degrees celsius, and how many joules is this?
2006-09-13 14:38:47 · 5 answers · asked by sungirl 2 in Science & Mathematics ➔ Chemistry
1 calorie=4.184 joules
What you need is the specific heat equation-
Specific heat is equal to Heat/(mass X Temp change)
Water's specific heat = 4.184 Joules/gram X degrees C
So plug in the mass of 1 ml of water and the difference in temperature, solve for heat( joules)
2006-09-13 15:11:53 · answer #1 · answered by Black Dog 6 · 1⤊ 0⤋
1 calorie heats 1ml of water 1 degree Celsius, so 21 calories heat it from 41 to 62 degrees. There are 4.18 joules per calorie so this is 21x4.18=87.78 joules.
2006-09-13 14:49:19 · answer #2 · answered by zee_prime 6 · 0⤊ 0⤋
One calorie contains the energy to raise 1 ml of water 1 degree celcius. A calorie is equal to 4.185 joules. So, your answer is 21 calories or 87.885 joules
2006-09-13 14:43:06 · answer #3 · answered by cuv 2 · 2⤊ 0⤋
one calorie is needed to heat one ml of water one degree celcius. so therefore you need 21 calories but i forget the joules thing.
2006-09-13 14:41:03 · answer #4 · answered by bchylik 3 · 0⤊ 0⤋
no
2006-09-13 14:40:18 · answer #5 · answered by cutiepie68 2 · 0⤊ 1⤋