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

 

 

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Popcorn:

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

 

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