When heat is given to a gas in an isobaric process then:
Correct answer: C. Both A and B
- A. Then the work is done by the gas
- B. Internal energy of the gas increases
- C. Both A and B
- D. None of these
Explanation
Properties of isobaric process. When heat is added to a gas in an isobaric process, a part of it is used to do external work while the reat is used to increase internal energy.
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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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