"
 I like moving down & clarifying the ""not a state function"" part as this is meaningless to the general reader.  Something about microscopic constituents should stay because it is a good pedagogy for visualizing what heat can be (even if not in the most general case).  Dissipative is important and slightly easier to understand than not a state function but could be explained.  Is this meant to address my concerns in previous section, or is it separate from that?   "