What is the formula for the change in internal energy of an ideal gas?
Formula: Δ U = n C(V,m) Δ T. Explanation: For an ideal gas, the change in internal energy Δ U depends only on the temperature change Δ T, independent of the pr…
Syllabus path: Thermal Physics › First Law of Thermodynamics
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CSCA Physics Formula Reference
Formula and explanation
Formula: Δ U = n C(V,m) Δ T. Explanation: For an ideal gas, the change in internal energy Δ U depends only on the temperature change Δ T, independent of the process. n is the amount of substance, C(V,m) is the molar heat capacity at constant volume. Applicability: Ideal gas (any process).
Related tutorial and examples
First Law of Thermodynamics
First Law of Thermodynamics 1. Core Concepts & Sign Convention The First Law of Thermodynamics is essentially the Law of Conservation of Energy applied to thermal processes. For a system (like gas in a cylinder), the change in internal energy Δ U equals the sum of heat Q supplied…
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