(a)
Interpretation:
The foods in Table
(a)
Explanation of Solution
The Table
The food items in above table are ranked from low caloric value to high caloric value as follows,
(b)
Interpretation:
The foods in Table
(b)
Explanation of Solution
The Table
The food items in above table are ranked from low fat content per
(c)
Interpretation:
The foods in Table
(c)
Explanation of Solution
The Table
The food items in above table are ranked from most healthful to least one as follows,
Observing sub parts (a) and (b) shows that they matches very well since only 2 items are interchanged. The third list discussed sub part (c) had two high fat foods closer to top of the list, due to fact that protein is important for a healthy diet. Hamburger and peanuts are good protein sources.
Advantage of using caloric value/fat content in food evaluation is that it helps individuals to understand which food helps in weight reduction or weight gain of the individuals. This is achieved by finding alternatives food without consuming more fuel than needed.
Disadvantage of caloric value/fat content in food evaluation is that fats and proteins are important nutritional components of healthy diet. Some amounts of proteins and fats has to be included in daily diet to achieve healthy life style.
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Chapter 4 Solutions
Chemistry: The Molecular Science
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- A rebreathing gas mask contains potassium superoxide, KO2, which reacts with moisture in the breath to give oxygen. 4KO2(s)+2H2O(l)4KOH(s)+3O2(g) Estimate the grams of potassium superoxide required to supply a persons oxygen needs for one hour. Assume a person requires 1.00 102 kcal of energy for this time period. Further assume that this energy can be equated to the heat of combustion of a quantity of glucose, C6H12O6, to CO2(g) and H2O(l). From the amount of glucose required to give 1.00 102 kcal of heat, calculate the amount of oxygen consumed and hence the amount of KO2 required. The ff0 for glucose(s) is 1273 kJ/mol.arrow_forwardChlorine dioxide, ClO2, is a reddish yellow gas used in bleaching paper pulp. The average speed of a ClO2 molecule at 25C is 306 m/s. What is the kinetic energy (in joules) of a ClO2 molecule moving at this speed?arrow_forwardAs a child plays on a swing, at what point in her movement is her kinetic energy the greatest? At what point is potential energy at its maximum?arrow_forward
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