U and its relations to work
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Re: U and its relations to work
U, stands for the internal energy of a system which can be altered by heat flow and work.
If heat flows into the system; work is done on the system, and its internal energy increases, ΔU > 0.
If heat flows out of the system, work is done by the system, and its internal energy decreases, ΔU < 0
Hope this helps!
If heat flows into the system; work is done on the system, and its internal energy increases, ΔU > 0.
If heat flows out of the system, work is done by the system, and its internal energy decreases, ΔU < 0
Hope this helps!
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Re: U and its relations to work
Additionally in a closed system, internal energy relates to work in this equation:
delta U = q + w
delta U = q + w
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Re: U and its relations to work
U represents the internal energy of a system. Its relation to work can be seen in the first law of thermodynamics: change in U = q(heat exchanged) + w(work done on or by the system).
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Re: U and its relations to work
The equation that relates U to work is delta U= q+w, U represents the change in internal energy.
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Re: U and its relations to work
U is a state property and is the internal energy of a system. Changes in internal energy are a function of work. The energy of a closed system can be changed by heating/cooling or compression/expansion. U=q + w. If V is zero (constant volume), delta U= . If P=0 (constant pressure), then U=H-PV.
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