CHAPTER 6 (edited)

# CHAPTER 6 (edited) - Chapter 6 When a fuel burns the energy...

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Chapter 6 When a fuel burns, the energy of the products is less than the energy of the reactants 6.1 The SI unit of energy is the joule, symbol J (1 J = 1 kg m 2 /s 2 ) A calorie is very close to the quantity of energy required to raise the temperature of one gram of water by one degree Celsius (1 cal = 4.184 J) 6.2 When a force acts on an object and moves the object, the change in the object’s kinetic energy is equal to the work done on the object Work – A process that transfers energy to an object Heat – The energy transfer process that happens whenever two samples of matter at different temperatures are brought into contact Thermal equilibrium - Energy always transfers from the hotter to the cooler sample until both are at the same temperature System – Region of primary concern Surroundings – Everything that can exchange energy with the system Internal energy – The sum of the individual energies (kinetic and potential) of all nanoscale particles (atoms, molecules, or ions)--- the internal energy during any process is calculated as E

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CHAPTER 6 (edited) - Chapter 6 When a fuel burns the energy...

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