the internal energy change
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In a particular reaction, the system does work on the surroundings and absorbs heat rom the surroundings. What is the sign of the internal energy change, ^U?
A. always negative
B. always positive
C. positive or negative depending on the relative magnitudes of the energy transfers
D. always zero
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Solution Summary
It shows how to determine the sign of the internal energy change when the system does work and absorbs heat.
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The change in internal energy that accompanies the transfer of heat, q, or work, w, into or out of a system can be ...
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