A chemical system is sealed in a strong rigid container at room temp and then heated vigorously change in work done during the process is:
Correct answer: C. Zero
- A. Positive
- B. Negative
- C. Zero
- D. Constant
Explanation
Work is defined as the force applied over a distance, resulting in the displacement of an object. In this case, since the container is strong and rigid, it prevents any change in volume or displacement of the chemical system. As a result, the work done on or by the system is zero.
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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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