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Laws of thermodynamics

Laws of thermodynamics. Thermodynamics. Laws of thermodynamics. Thermodynamics – the study of heat and its conversion into mechanical energy. Laws of thermodynamics. Absolute zero. Laws of thermodynamics. Absolute zero – a theoretical temperature that cannot be attained in real life. .

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Laws of thermodynamics

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  1. Laws of thermodynamics Thermodynamics

  2. Laws of thermodynamics Thermodynamics – the study of heat and its conversion into mechanical energy

  3. Laws of thermodynamics Absolute zero

  4. Laws of thermodynamics Absolute zero – a theoretical temperature that cannot be attained in real life.

  5. Laws of thermodynamics Absolute zero – is value is 0K on the kelvin scale, and negative two hundred and seventy three degrees on the Celsius scale. (-273oC)

  6. Laws of thermodynamics Temperature conversions K=TC+273 TC=K-273

  7. Laws of thermodynamics First Law of Thermodynamics Heat added = change in internal energy + external work done by the system

  8. Laws of thermodynamics First Law of Thermodynamics Q= DE + W External work done by or on the system. Change in internal energy Heat added

  9. Laws of thermodynamics Example – A system consisting of a cylinder an piston has 1000J of energy added to it. The system does 250 J of external work. What was the change in the internal energy of the system.

  10. Laws of thermodynamics Q= DE + W DE =Q-W=1000-250=750J

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