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According to the Clausius inequality, it can be proven that the quotient of work-temperature in the real process is no less than one in the reversible process. On the basis of the Carnot theorem, it can be proven that the work in the real process is no less than one in the reversible process, or the heat in the reversible process is no less than one in the real process. The real process includes the reversible and irreversible process. The above-mentioned results haven’t any relation with paths. The inequality of quotient of work-temperature could be applied to other works. The He(II) motion in superfluid obeys the inequality of quotient of work-temperature. Keywords-the first law; Clausius inequality; Carnot theorem; work; heat

The Inequality of Work Derived from Clausius Inequality and Carnot Theorem