Respuesta :
Answer: The amount of kilocalories contained in the given serving of soup is 0.137 kCal
Explanation:
As per the USDA:
Carbohydrates provide 4 calories per gram, protein provides 4 calories per gram, and fat provides 9 calories per gram.
We are given
Mass of fat in the soup serving = 5.0 g
Mass of carbohydrates in the soup serving = 20.0 g
Mass of protein in the soup serving = 3.0 g
Conversion factor used: 1 kCal = 1000 Cal
Applying unitary method:
- For Fat:
1 gram of fat provides 9 calories
So, 5.0 gram of fat will provide = [tex]\frac{9}{1}\times 5.0=45Cal=0.045kCal[/tex]
- For Carbohydrates:
1 gram of carbohydrates provides 4 calories
So, 20.0 gram of carbohydrates will provide =[tex] \frac{4}{1}\times 20.0=80Cal=0.080kCal[/tex]
- For Proteins:
1 gram of proteins provides 4 calories
So, 3.0 gram of fat will provide = [tex]\frac{4}{1}\times 3=12Cal=0.012kCal[/tex]
Total kilocalories per serving = [0.045 + 0.080 + 0.012] kCal = 0.137 kCal
Hence, the amount of kilocalories contained in the given serving of soup is 0.137 kCal
