Chapter One
1 We know heat transfers from higher temperature to lower one, and if we think of a process in which it is other way, then it will not be possible.
2 It need not always be a physical entity and may even be a thought like God. This depends on what is to be studied.
3 In these trains, passengers cannot move from one compartment to another within the train itself.
4 In mathematics, we learn that if there are n equations in m unknowns (n < m), then (m – n) is the degree of freedom to choose that many number of variables arbitrarily and determine the rest in terms of these chosen variables. In the cited example, f is the degree of freedom of the system.
5 These are not the only temperatures that are used for calibration. Other temperatures ...
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