Physics · Thermodynamics
A closed system executes a cyclic process during which there are four heat transfers: Q1 = 1000 J, Q2 = -90 J, Q3 = -700 J, and Q4 = 250 J. There are also four work interactions: W1 = 100 J, W2 = -50 J, W3 = 200 J, and W4. Find the magnitude and direction of the fourth work interaction, W4.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1210 J (work done by the system)✓
- 21290 J (work done by the system)
- 3-1690 J (work done on the system)
- 41690 J (work done by the system)
Correct answer
210 J (work done by the system)
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