First Law of Thermodynamics Question

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SUMMARY

The first law of thermodynamics is expressed by the equation ΔQ = ΔU + ΔW, where ΔQ represents the heat added to the system, ΔU signifies the change in internal energy, and ΔW denotes the work done by the system. This law fundamentally illustrates the principle of energy conservation, indicating that the heat supplied to a system is converted into internal energy and work. Understanding these terms is crucial for grasping the energy dynamics within thermodynamic systems.

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  • Basic understanding of thermodynamic principles
  • Familiarity with the concepts of internal energy and work
  • Knowledge of energy conservation laws
  • Ability to interpret thermodynamic equations
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Homework Statement


The first law of thermodynamics states ΔQ = ΔU + ΔW. What does the ΔQ and the ΔW represent?


Homework Equations


ΔQ = ΔU + ΔW


The Attempt at a Solution


I've never seen the equation set up like this before so I'm a little confused. I said that ΔQ is the heat supplied to the system and ΔW is the work done by the system.
 
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First law of thermodynamics is basically an energy conservation law. It just states that heat that is added to the system is partially converted to system's internal energy and to perform work. That's all. ΔQ is heat added to the system, ΔU is change of internal energy (sum of all potential and kinetic energy of its particles) and ΔW is work done by the system.
 

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