Answer :
Emma will not have burned all the calories from the two chocolate skewers with 15 minutes of cycling, as the calorie expenditure is significantly lower than the amount of calories consumed.
How did we arrive at this assertion?
To determine if Emma has burned the calories consumed from the two chocolate skewers, do these calculations:
1. Calculate the total number of chocolates consumed.
2. Calculate the total number of calories consumed.
3. Calculate the calorie expenditure from the bike ride.
1. Calculation of the total number of chocolates consumed:
- Each skewer has 4 cubic chocolates.
- Emma ate two skewers.
- Total number of chocolates = 4 chocolates/skewer * 2 skewers = 8 chocolates.
2. Calculation of the total number of calories consumed:
- Each chocolate cube has sides of 2 cm.
- The silicone mold produces 12 cubes.
- One liter of chocolate weighs 800 g, and 100 g of chocolate provides 540 kcal.
- Each cube weighs 800 g / 12 cubes = 66.67 g (approximately).
- Calories per cube = (66.67 g / 100 g) * 540 kcal = 360.018 kcal/cube.
- Total number of calories consumed = 8 chocolates * 360 kcal/chocolate = 2880.144 kcal.
3. Calculation of the calorie expenditure from the bike ride:
- Caloric expenditure (in kcal) = 0.16 * person's weight (in kg) * duration of the effort (in min).
- Caloric expenditure = 0.16 * 56 kg * 15 min = 134.4 kcal.
Comparison:
- Calories consumed = 2880.144 kcal.
- Calories expended = 134.4 kcal.
Emma will not have burned all the calories from the two chocolate skewers with 15 minutes of cycling, as the calorie expenditure is significantly lower than the amount of calories consumed. Physical exercise can help burn calories, but it generally requires more time and effort to offset a significant calorie intake.
Question in the same language as answer:
Title: Chocolate Skewers
Emma weighs 56 kg and is 1.63 m tall. She ate two skewers, each consisting of 4 cubic chocolates. By cycling for 15 minutes, will she have burned the calories provided by these two chocolate skewers?
☐ Making Chocolate Cubes
• The silicone mold used allows the creation of 12 chocolate cubes with a side length of 2 cm. It costs €8.49. 1 L of chocolate weighs 800 g. 100 g of chocolate provides 540 kcal.
Calculation of Caloric Expenditure
Caloric expenditure (in kcal) = 0.16 x person's mass (in kg) x duration of effort (in min)
