~A system uses 2,380 J of energy to do work as 12,900 J of heat are added to the system.~
~The change in internal energy of the system is (blank) J.~
~What goes in the blank?~
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~The change in internal energy of the system is (blank) J.~
~What goes in the blank?~
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:3
Answers & Comments
Answer:
From the first law of thermodynamics, the change in internal energy is equal to work done by the system subtracted from the heat added to the system. i.e.ΔU = Q - W Now, as per question, A system uses 2,380 J of energy to do work as 12,900 J of heat are added to the system. Thus, ΔU = 12900 - 2380 = 10,520 J
Explanation:
Heat added to the system is 12,900 J. Therefore, calculate change in internal energy as follows. Thus, we can conclude that the change in internal energy of the system is 15,280 J.