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From the second law of thermodynamics, it can be obtained that there is no such heat engine that gives 100 percent efficiency without any losses or limitations.

The statement 鈥淵ou can鈥檛 get something for nothing鈥� correlates to the first law of thermodynamics because it could be a way of saying that energy is conserved.

The work performed by a specific system does require heat from an outside source or its internal energy. So, to obtain work done, something is applied by the system.

Thus, it is equivalent to the formal statement of the first law of thermodynamics.

The statement, 鈥淵ou can鈥檛 even break even,鈥� relates to the second law of thermodynamics because it indicates that a certain heat engine cannot produce 100 percent efficiency.

For example, if the engine takes heat through the input, it is impractical to give an exact amount of energy at the output because some energy will be lost.

Thus, it is equivalent to the formal statement of the second law of thermodynamics.