enthalpy–entropy chart
... that an enthalpy–entropy chart shows enthalpy in terms of internal energy, pressure and volume, so that the work done in vapor cycles can be directly measured as a length?
... that an <b id="mwHBQ"><a class="mw-redirect" href="./Enthalpy-entropy_chart" id="mwHBU" rel="mw:WikiLink" title="Enthalpy-entropy chart">enthalpy–entropy chart</a></b> shows <a href="./Enthalpy" id="mwHBY" rel="mw:WikiLink" title="Enthalpy">enthalpy</a> in terms of internal energy, pressure and volume, so that the <a href="./Work_(physics)" id="mwHBc" rel="mw:WikiLink" title="Work (physics)">work done</a> in vapor cycles can be directly measured as a length?