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Living conditions , funding constraints and the fear of the risk of loss kills ambition
First law of thermodynamics states that cyclic integral of heat transfer is equal to cyclic integral of work.transfer but it is valid for slow or moderate process, free e ... See More
Work done in free expansion is zero because the process is highly irreversible.
zero,as change in heat and change in internal energy is zero,then by first law of thermodynamics work become zero.