First law thermodynamics is a special case of
Correct answer: C. Conservation of energy
- A. Newton's law
- B. Charles' law
- C. Conservation of energy
- D. Conservation of entropy
Explanation
The first law of thermodynamics is essentially an expression of the law of conservation of energy applied to thermodynamic systems. The first law of thermodynamics states that energy cannot be created or destroyed in an isolated system; it can only be converted from one form to another. In the context of thermodynamics, the first law is often expressed mathematically as:U= Q-W
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About First Law of Thermodynamics
The first law relates heat supplied, work done and the change in internal energy through energy conservation. Problems use sign conventions and apply the law to isothermal, adiabatic, isobaric and isochoric processes. Internal energy is a state function, while heat and work depend on the path followed.
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More First Law of Thermodynamics questions
The efficiency of the heat engine can be defined as:
The efficiency of the heat engine can be increased by:
Under a cyclic path, internal energy after the complete cycle is the same as:
When the amount of work done is 333 cal and internal energy is 167 cal then heat supplied is _.
Which of the following statement is not true about heat engine?
A succession of events which bring the system back to its initial condition is called _.