Visualizing ConceptsYou may have noticed that when you
Chapter 3, Problem 7E(choose chapter or problem)
Problem 7E
Visualizing Concepts
You may have noticed that when you compress the air in a bicycle pump, the body of the pump gets warmer (a) Assuming the pump and the air in it comprise the system, what is the sign of wwhen you compress the air? (b) What is the sign of q for this process? (c) Based on your answers to parts (a) and (b), can you determine the sign of ΔE for compressing the air in the pump? If not, what would you expect for the sign of ΔE? What is your reasoning? [Section]
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