In a quasi - static process, what is the expression for work in the First Law of Thermodynamics?
Formula: W = - ∫(V₁)^(V₂) p dV Applicable conditions: Quasi - static process (process occurs infinitely slowly, system always in equilibrium). Explanation: The…
Syllabus path: Thermal Physics › First Law of Thermodynamics
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CSCA Physics Formula Reference
Formula and explanation
Formula: W = - ∫(V₁)^(V₂) p dV Applicable conditions: Quasi - static process (process occurs infinitely slowly, system always in equilibrium). Explanation: The work done on the system ( W ) equals the negative integral of pressure ( p ) with respect to volume ( V ). When the system expands ( dV > 0 ), W is negative, meaning the system does work on the surroundings.
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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