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63 J of heat are added to a closed system. The initial energy of the system is 58J, and the final internal energy is 93J. How much work is being done by the system?
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63 J of heat are added to a closed system. The initial energy of the system is 58J, and the final internal energy is 93J. How much work is being done by the system?

63 J of heat are added to a closed system. The initial energy of the system is 58J-example-1
User Mohamed Oraby
by
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1 Answer

9 votes

ΔU = Q + W

  • heat in, Q +
  • heat out, Q -
  • does work , W -
  • work in, W +

93-58 = 63 + W

35 = 63 + W

W = - 28 J (does work/being done by system)

User Sevce
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