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 mu
ch work is being done by the system?
1 answer:
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)
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