Oct 2
Recall how to carry out a simple experiment to determine the energy content in a food sample
|
Food |
Weight of Food (g) |
Temperature of Food from Start |
Temperature of Food From Ending |
|
Popcorn |
0.18 |
28 |
29 |
|
Crouton |
0.55 |
27 |
31 |
|
Noodle |
1.25 |
25 |
36 |
|
Bread |
0.86 |
28 |
31 |
20g x (29-28) x 4.2 = 84 84/0.18 = 466.7J Crouton: 20g x (31-27) x 4.2 = 336 336/0.55 = 1110.7J Noodle: 20g x (36-25) x 4.2 = 924 924/1.25 = 739.2J Bread: 20g x (31-28) x 4.2 = 252 252/0.86 = 293.0J
Popcorn:

