Zero Positive Negative W B--C Zero Positive Negative Q C--A Zero Positive Negati

Question

Zero Positive Negative  WB--C
Zero Positive Negative  QC--A
Zero Positive Negative  WA--B
Zero Positive Negative  QB--C
Zero Positive Negative  UA--B
Zero Positive Negative  UC--A
Zero Positive Negative  WC--A

A thermodynamic system goes from state A to B to C. QA--B, is positive, and UB--C is positive. (Select Zero, Positive, or Negative for all selections) A thermodynamic system goes from state A to B to C. QA--B, is positive, and UB--C is positive. (Select Zero, Positive, or Negative for all selections) Zero Positive Negative WB--C Zero Positive Negative QC--A Zero Positive Negative WA--B Zero Positive Negative QB--C Zero Positive Negative UA--B Zero Positive Negative UC--A Zero Positive Negative WC--A

Explanation / Answer

Work or Energy INTO the system is considered POSITIVE
Work or Energy OUT of the system is considered NEGATIVE
1 W Negative

2 Q Negative

3 W Zero

4 Q Positive

5 U Positive

6 U Negative

7 W Positive

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