Home/Basic Physics/Thermodynamics/Efficiency of a heat engine15. ThermodynamicsEfficiency of a heat engineIn 15. ThermodynamicsFormulaCopy LaTeXη=WQH=1−QCQH\eta=\frac{W}{Q_H} = 1-\frac{Q_C}{Q_H}η=QHW=1−QHQCTagsphysicsphysics formulathermodynamicsDetailThe efficiency of a heat engine is the net work divided by the heat absorbed from the hot source.Explore the ideaExplore the ideaFound an error? Contact us.Related formulasRelatedEfficiencyη=EuˊtilEentrada\eta=\frac{E_{\text{útil}}}{E_{\text{entrada}}}η=EentradaEuˊtilOpen formulaOpen in sectionRelatedCarnot efficiencyηC=1−TCTH\eta_C=1-\frac{T_C}{T_H}ηC=1−THTCOpen formulaOpen in section