Chapter3: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 58P: Consider the processes shown below. In the processes AB and BC, 3600 J and 2400 J of heat are added...
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Question
Determine in which case is heat added to the system?
(a) ΔU = –43 J, w = 40 J; or (b) ΔU = 31 J, w = 34 J?
2. In a particular process, 500 J of work is done on the system, which gives off 200
J of heat. What is the value of for the process?
3. Which system does more work?
(a) U = -436 J, q= 400 J or (b) U = 317 J, q= 347 J (U = q + W)
4. Calculate
(a) q when a system does 44 J of work and its energy decreases by 62 J
(b) U for a gas that releases 48 J of heat and has 112 J of work done on it.
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