Why the energy unit matters: units
Specific heat
enthalpy
Primary sources of energy are usually chemical nuclear
propane
Natural gas
gasoline
smog
Ozone urban sprawl depletion overpopulation global warming deforestation
pollution
Hess’s Law
sources
Free energy
Eco-cars
issues
coal
diets
Water, ice, and steam
types
Energy
Energy: What Changes Should We Make? Energy
units
diets
Specific heat
enthalpy
types
If I eat normal, and run hard one hour per day I should 500 lose _____Nutritional Calories per day
1,000 One hour of intense cardio exercise burns ______ Nutritional Calories
1 And I can expect to lose ____ pound(s) per week.
Hess’s Law
3,500 Nutritional Calories One pound of body fat contains _____
Free energy
Eco-cars
1,500 Nutritional Calories per day People burn roughly _____ without exercise
sources
issues
2,000 An average diet is about _____ Nutritional Calories per day
Water, ice, and steam
Energy and Weight Loss
Energy: What Changes Should We Make?
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