If a system has 5.00 x 10^2 kcal of work done to it, and releases 5.00 x 10^2 kj of heat into its surroundings, what is the change in internal energy (E or U) of the system?
How do I know whether to use E or U when trying to find the internal energy?
wk 4 hw 16
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Ryan Ma 1A
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Re: wk 4 hw 16
U will always be the internal energy of the system as given by the equation U = q+w. In this scenario, the system has work done to it meaning positive w and releases heat, which means negative q.
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