Question 4Complete the following table. Round each of your answers to 3 significant digits.food energy content when eatencal kcal kJthree ounces of cooked sirloin steak ×2.40105 600 a cup of chicken noodle soup 75.0 a small apple 523.
Question
Question 4Complete the following table. Round each of your answers to 3 significant digits.food energy content when eatencal kcal kJthree ounces of cooked sirloin steak ×2.40105 600 a cup of chicken noodle soup 75.0 a small apple 523.
Solution
The table you provided is incomplete, but I can help you fill it in based on the information given and some assumptions.
The energy content of food can be measured in calories (cal), kilocalories (kcal), or kilojoules (kJ).
1 cal = 0.001 kcal 1 kcal = 4.184 kJ
Let's fill in the table:
-
Three ounces of cooked sirloin steak:
- cal: 2.40105 * 10^5 cal
- kcal: 2.40105 * 10^5 cal * 0.001 = 240.105 kcal ≈ 240 kcal (rounded to 3 significant digits)
- kJ: 240.105 kcal * 4.184 = 1004.8 kJ ≈ 1005 kJ (rounded to 3 significant digits)
-
A cup of chicken noodle soup:
- cal: 75.0 kcal * 1000 = 75000 cal
- kcal: 75.0 kcal
- kJ: 75.0 kcal * 4.184 = 313.8 kJ ≈ 314 kJ (rounded to 3 significant digits)
-
A small apple:
- cal: 523 kJ * 0.239006 = 125.0 cal ≈ 125 cal (rounded to 3 significant digits)
- kcal: 125.0 cal * 0.001 = 0.125 kcal ≈ 0.125 kcal (rounded to 3 significant digits)
- kJ: 523 kJ
So, the completed table would look like this:
| Food | Energy content when eaten (cal) | Energy content when eaten (kcal) | Energy content when eaten (kJ) |
|---|---|---|---|
| Three ounces of cooked sirloin steak | 2.40105 * 10^5 | 240 | 1005 |
| A cup of chicken noodle soup | 75000 | 75.0 | 314 |
| A small apple | 125 | 0.125 | 523 |
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