Mass Calorimeter /g A1: 50.8 Ass of Cal + cold water /g A:2: 100.9 Mass of Cold
ID: 679748 • Letter: M
Question
Mass Calorimeter /g
A1: 50.8
Ass of Cal + cold water /g
A:2: 100.9
Mass of Cold water / g
50.1
Temperature of Cold Water (degree C)
21.6
Temp of hot water (C)
43.6
Final temp of water C
30.2
Mass of Calorimeter + Cold Water + Hot Water /g
A3: 150.7
Mass of Hot Water (A3-A2)
Mass Calorimeter /g
A1: 50.8
Ass of Cal + cold water /g
A:2: 100.9
Mass of Cold water / g
50.1
Temperature of Cold Water (degree C)
21.6
Temp of hot water (C)
43.6
Final temp of water C
30.2
Mass of Calorimeter + Cold Water + Hot Water /g
A3: 150.7
Mass of Hot Water (A3-A2)
49.8Explanation / Answer
Use conservation of Heat: Q(hot) + Q(cold) + Q(calorimeter) = 0 mCT(hot->cold) + mCT(cold->hot) +mCT(calorimeter) = 0 Assume that the calorimeter starts at the same temperature as thewater (49.8 g)(4.18 J/gK)(30.2 - 43.6) + (50.1g)(4.18 J/gK)(30.2-21.6) +(50.8)(C)(30.2-21.6) = 0 -2789.4 J + 1800.99 J + 436.88C = 0 C (calorimeter) = 2.26 J/gK