Work done in an adiabatic process depends upon:
Correct answer: B. Change in temperature
- A. Change in pressure
- B. Change in temperature
- C. Change in volume
- D. All of these are correct
Explanation
In an adiabatic process, there is no heat exchange (Q=0), so first law of thermodynamics becomes ΔU = -W. For ideal gas, the change in internal energy (ΔU) depends only on change in temperature (ΔT). Therefore, the work done in an adiabatic process also depends on the change in temperature.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Practise Thermodynamics
714 free Thermodynamics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More First Law of Thermodynamics questions
Which one of the following is irreversible?
A heat engine performs 100 J of work and at the same time rejects 400 J of heat energy to cold reservoirs.What is the efficiency of the engine?
Two identical gases expand i) isothermally and ii) adiabatically. Work done is more in:
A reversible carnot engine converts 1/6th of heat into input work. When the temperature of the sink is reduced by 62°C, then the efficiency is doubled. The temperature of the source and sink is:
For an adiabatic process, the first law of thermodynamics can be written as: Work done by the system = decrease in internal energy of the system
The internal energy of an ideal gas depends upon only: