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Chapter 6 - Thermodynamics_Part2

Chapter 6 - Thermodynamics_Part2 - GENERAL CHEMISTRY...

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GENERAL CHEMISTRY CHAPTER 6 – THERMODYNAMICS P AGE 5 OF 16 External Kinetic Energy = Kinetic energy associated with the overall movement of a body Internal Kinetic Energy = Kinetic energy associated with the random motion of particles in a body Internal energy can be increased by: Compression, distortion of an object Put the object in contact with a hot object by increasing the temperature KE α T Increasing temperature causes the particles to speed up and collide into each other more The more collisions the more internal kinetic energy the object has
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GENERAL CHEMISTRY CHAPTER 6 – THERMODYNAMICS P AGE 6 OF 16 Heat Capacity and Specific Heat Capacity When a system absorbs heat, its temperature increases The increase in temperature is directly proportional to the amount of heat absorbed The proportionality constant = heat capacity, C Units of C are J/°C or J/K Heat q = C x T The heat capacity of an object depends on its mass
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