1
Question
A gas sample is cooled and loses 65 J of heat. The gas contracts as it cools and work done on the system equal to 20 J. What are q, w and △U ?
A gas sample is cooled and loses 65 J of heat. The gas contracts as it cools and work done on the system equal to 20 J. What are q, w and △U ?
Open in App
Solution
The correct option is A q=−65 J,w=20 J,△U=−45 J
From first law of thermodynamics
△U=q+w
where ΔU = change in internal energy of the system
q = heat energy during the process
w = work done during the process
q=−65 J w=20 J
△U=−65+20=−45 J
From first law of thermodynamics
△U=q+w
where ΔU = change in internal energy of the system
q = heat energy during the process
w = work done during the process
q=−65 J w=20 J
△U=−65+20=−45 J
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
