SPH 302 LESSON 3: The first law of thermodynamics

Institution	TOM MBOYA UNIVERSITY
Course	EDUCATION
Year	3rd Year
Semester	Unknown
Posted By	Brian Mike
File Type	pdf
Pages	10 Pages
File Size	507.88 KB
Views	7229
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When a system changes from a given initial state to a given final state, both the work W and the heat Q depend on the nature of the process. Experimentally, however, we find that the quantity Q – W is the same for all processes. It depends only on the initial and final states, and does not depend at all on how the system gets from one state to the other. All other combinations of Q and W, including Q alone, W alone, Q + W, and Q - 2W, are path dependent; only the quantity Q – W is not.

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