Apply the first law of thermodynamics to calculate the change in internal energy, heat, or work for a closed system. This fundamental law describes energy conservation in thermodynamic processes.
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Heat added to the system
Work done by the system
How this calculator works
The change in internal energy equals the heat added to the system minus the work done by the system.
Common questions about this calculator
These calculators are for educational and informational purposes only. While we strive for accuracy, results should be verified for critical applications. Always consult authoritative sources for engineering or scientific work.
