Which of the following is incorrect about the overall energy balance and mechanical energy balance in fluid flow phenomena? A. The former only accounts the first law of thermodynamics while the latter includes the second. B. The former only accounts the work brought by changes in the volume while the latter includes the Δ(PV) work. C. The enthalpy of the system for both balance is the sum of the changes in the internal energy and the reversible work at constant pressure. D. The former is not often used to evaluate a system with changing pressure unlike the latte

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Laws of thermodynamics

Thermodynamics is a field of research, which needs the creation of absolute and ideal states and logical and practical examination of the actual conditions. By considering all the laws and theories of thermodynamics, the chemical reactions, the occurrence of processes, and physiological functions can be predicted with this field.