NEET Class neet Answered
Please solve this problem
Asked by Www.manashjyoti333 | 26 Oct, 2019, 09:27: PM
Expert Answer
From first law of thermodynamics, we have , dQ = dU + dW ..............(1)
where dQ is heat absorbed, dU change in internal energy and dW is amount of workdone.
For isothermal process, temperature is constant, hence dU = 0 ................(2)
isothermal expansion process involves absorption of heat, hence dQ is +ve .
Hence from eqns.(1) and (2), dW is +ve .
Answer:- dQ +ve, dU=0, dW +ve
Answered by Thiyagarajan K | 26 Oct, 2019, 10:04: PM
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