Its thermodynamic conjugate, an isobaric process would appear as a straight horizontal line. TMT belongs to a family of reagents referred to as isobaric mass tags. The most common isobaric tags are amine-reactive tags. This differing radius of curvature allows for isobaric purification to take place. The aforementioned volumes exclude the isobaric chamber. Other models (e.g., GFS) gradually transition from sigma to isobaric. Another cycle that features isobaric heat-addition and heat-rejection processes is the Ericsson cycle. This is known as isobaric counterdiffusion, and presents a problem for very deep dives. Isobaric labeling is a mass spectrometry strategy used in quantitative proteomics. During the constant pressure (red, isobaric) process, energy enters the system as heat formula 6. An isobaric (same-pressure) process occurs when the pressure of the system remains constant. Two simple cases are constant pressure (an "isobaric process") and constant volume (an "isochoric process"). Waste heat is rejected during the isobaric cooling which consumes some work. It would be convenient to have a similar equation for isobaric processes.