Resting metabolism. Suppose a body loses heat to the environment at the rate of 100 J/ hr. How long would it take to a resting person to completely convert to energy (metabolize) a cookie with a nutritional value of 60 Cal. Suppose the same individual engage in aerobic exercise, during which the body looses hear to the environment at the rate of 250 J / hr. How long will it take to metabolize the energy in a 60 Cal cookie.
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.
2. Resting
Suppose the same individual engage in aerobic exercise, during which the body looses hear to the environment at the rate of 250 J / hr. How long will it take to metabolize the energy in a 60 Cal cookie.
2) Given : Rate of heat lost at resting position = 100 J/hr
And total energy of cookie = 60 cal
NOTE : Here I'm assuming that 60 cal means 60 calories only and not 60 kilocalories as kilocalories does not makes sense.
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