Topical Questions
These questions are keyed to the major topics in this chapter. Usually a question that is answered at the back of this book is paired with a similar one that is not.
A chemical reaction occurs, and 20.7 J is transferred from the chemical system to its surroundings. (Assume that no work is done.)
(a) What is the algebraic sign of ΔTsurroundings?
(b) What is the algebraic sign of ΔEsystem?
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