Write first law of thermodynamic. give its mathematically
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Energy of an isolated system remains constant.
U = q+w
U = q+w
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It is typical for chemistry texts to write the first law as ΔU=Q+W. It is the same law, of course - the thermodynamic expression of the conservation of energy principle. It is just that W is defined as the work done on the system instead of work done by the system.
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