How much heat energy was transfered from the hot water? How much from the cold?
2007-06-14 14:22:22 · 2 answers · asked by Answer Champion 3 in Science & Mathematics ➔ Chemistry
No heat was transferred from the cold. Heat can only flow from hot to cold. So the Heat Lost by the Hot water will equal (or should equal) the Heat Gained by the Cold water.
We'll do this the long way...
Temperature change of the hot water = 75 - 47.5 = 27.5°C
= 50g x 27.5 ΔT x 4.184J//g°C
Heat lost = 5,753J = Heat gained.
To check this, let's check the cold water.
50g x 27.5 ΔT x 4.184 = exactly the same as above.
Therefore, Heat lost = Heat gained ....
....
2007-06-14 14:38:22 · answer #1 · answered by Norrie 7 · 0⤊ 0⤋
Heat transfered from the hot water to the cold
50 ml * 27.5 = 1,375 cal.
Heat transferred from the cold water to the hot, 0.
Doug
2007-06-14 21:29:20 · answer #2 · answered by doug_donaghue 7 · 0⤊ 0⤋