Basic Thermodynamics ~ J. Pohl © www.askdrthermo.com

Time is a grand abstract. Time has to do with every system but it is not a system property. We make time quantitative on a relative scale. It marks and measures sequences of events.. which occured first, second, next and so on. Time does not participate in events, it is an observer. Thermodynamics uses special aspects of matter and of time to describe physical events of that matter.

Time-Related Notations

TIME and TIME-RELATED NOTATIONS:  Time is a human perception and also a dimension of our sciences. Time is measurable; our clocks measure the lengths of our lives as we live. Our clocks tell us where we are in the day, calenders place the day in a larger time frame - the year. We use the idea of time scientifically, to explain the past or predict the future. Some special notations for thermodynamics follow:

The above examples and explanations have refreshed our memories of some aspects of physics. Math, vectors and calculus are the tools of thermodynamic analysis. Here even simple problems, with obvious answers, will be posed mathematically for analysis. The purpose is solve the easy problems correctly so as to learn a method for more difficult problems.