Home/Basic Physics/Thermodynamics/Isothermal process of an ideal gas15. ThermodynamicsIsothermal process of an ideal gasIn 15. ThermodynamicsFormulaCopy LaTeXPV=constantePV=\text{constante}PV=constanteWorkCopy LaTeXW=nRTln(VfVi)W=nRT\ln\left(\frac{V_f}{V_i}\right)W=nRTln(ViVf)For an ideal gasCopy LaTeXΔU=0,Q=W\Delta U=0,\qquad Q=WΔU=0,Q=WTagsphysicsphysics formulathermodynamicsDetailIn an isothermal process of an ideal gas, PV is constant, ΔU=0 and Q=W.Explore the ideaExplore the ideaFound an error? Contact us.Related formulasRelatedIdeal gas equationPV=nRTPV=nRTPV=nRTOpen formulaOpen in sectionRelatedFirst law of thermodynamicsΔU=Q−W\Delta U=Q-WΔU=Q−WOpen formulaOpen in section