Problem 1: Suppose a man does 35.5 kJ of work with an efficiency of 4.95 %. How much food energy, in kilocalories, will the man metabolize in the process? AU = | %3D

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First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.