The bicycle pump works on the basis of:
Correct answer: A. 1st Law of thermodynamics
- A. 1st Law of thermodynamics
- B. 2nd Law of thermodynamics
- C. Law of conservation of energy
- D. Law of entropy
Explanation
An adiabatic process is one where no heat enters or leaves a system. Here, we compress a gas adiabatically inside a bicycle pump. The work done on the gas increases its internal energy, increasing its temperature in accordance with the first law of thermodynamics. Increase in internal energy dU = dW the work done on the system.
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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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