Carbohydrate Requirements (sugars and starch in rice, potato, pasta, bread, sugar, fruits, etc.) : The Institute of Medicine recommends adults consume on average 50 percent of their daily calories from carbohydrates. Since carbohydrates contain about 3.94 calories in each gram and recommended daily calories intake for an average person is 2,100 cal, calculate how many grams of carbohydrate average person need to eat per day? (Hint: first find how many calories should be coming from the carbs, then convert them to grams). Use two sig figs for this answer and the other two below, and enter number only, no units. Protein Requirements (high-protein foods include lean meats, poultry, seafood, soyatroducts, eggs, dairy foods, nuts and seeds): Adults should consume about 20 percent of their energy intake from protein. Since protein provides 5.65 calories per gram, if a person eats a 2,100-calorie diet, how many grams of protein does he/she need to consume daily? Fat Requirements (eat healthy fats such as vegetable oils, fish oil, hummus, avocados, nuts and seeds instead of high-fat meats, shortening, butter and full-fat dairy products): The Institute of Medicine suggests adults eat 30 percent of their daily calories from fat. Since fat provides 9.44 calories per gram, caleulate how many calories daily should come from fat sources if your daily calories intake is 2,100 cal.
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
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