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Thermal Energy & Heat Ch. 16 Intro to Physics.

Published byVerity Lucas Modified over 6 years ago

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Presentation on theme: "Thermal Energy & Heat Ch. 16 Intro to Physics."— Presentation transcript:

1 Thermal Energy & Heat Ch. 16 Intro to Physics

2 Thermal Energy and Matter
Total energy particles Mass, temp., phase

3 Heat Transfer thermal energy How flow? Temperature KE Collisions

4 Heat Transfer Conduction No transfer matter Particle collision Metals
Free flowing electrons Conductor Insulator

5 Heat Transfer Convection Movement of particles in fluids Currents

6 Heat Transfer Radiation Waves through space

7 Thermodynamics 1st Law 2nd Law 3rd Law Energy conserved
Heat flow from Hot to cold unless work done to force Can’t get as much energy out as put in Entropy universe increasing 3rd Law Entropy of a perfect crystal at 0 K is 0 "It is impossible by any procedure, no matter how idealized, to reduce the temperature of any system to zero temperature in a finite number of finite operations".[

8 Thermal Expansion and Contraction

9 Specific Heat Q = mcDT Example P. 477 Calorimeter

10 Heat Engines External Combustion Internal Combustion

11 Read Section 16.3

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