{"id":16910,"date":"2018-02-27T19:08:26","date_gmt":"2018-02-27T19:08:26","guid":{"rendered":"http:\/\/sitepourvtc.com\/?page_id=16910"},"modified":"2022-11-10T06:28:39","modified_gmt":"2022-11-10T06:28:39","slug":"work-in-thermodynamics","status":"publish","type":"page","link":"https:\/\/sitepourvtc.com\/nuclear-engineering\/thermodynamics\/laws-of-thermodynamics\/first-law-of-thermodynamics\/work-in-thermodynamics\/","title":{"rendered":"Work in Thermodynamics"},"content":{"rendered":"
W = F . d<\/em><\/strong><\/p>\n where:<\/p>\n W = work (J)<\/p>\n F = force (N)<\/p>\n d = displacement (m)<\/p>\n<\/div><\/div>\n Pressure-volume work (or p\u0394V <\/em><\/strong>Work<\/strong>) occurs when the volume V<\/em> of a system changes. The p\u0394V <\/em><\/strong>Work<\/strong> is equal to the area under the process curve plotted on the pressure-volume diagram. It is also known as boundary work<\/strong>.\u00a0\u00a0<\/strong>Boundary work<\/strong> occurs because the mass of the substance within the system boundary causes a force, the pressure times the surface area, to act on the boundary surface and move it. Boundary work<\/strong>\u00a0(or\u00a0p\u0394V<\/strong><\/em>\u00a0<\/em><\/strong>Work<\/strong>) occurs when the\u00a0volume<\/strong>\u00a0<\/strong>V<\/strong><\/em>\u00a0<\/strong>of a system changes<\/strong>. It is used for calculating piston displacement work in a\u00a0closed system<\/strong>. This happens when steam<\/strong><\/a>\u00a0or gas contained in a piston-cylinder device expands against the piston and forces the piston to move.<\/p>\np\u0394V Work<\/h2>\n