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A gas is allowe to expandin a well insulated container againsta constant external pressure of2.5 atmfrom an initial volume of2.50 Lto a final volume of 4.50L. The change in internal energy DeltaU of thegas in Joules will be |
Answer» <html><body><p><<a href="https://interviewquestions.tuteehub.com/tag/p-588962" style="font-weight:bold;" target="_blank" title="Click to know more about P">P</a>>1136.25J`<br/>`-<a href="https://interviewquestions.tuteehub.com/tag/500j-1893997" style="font-weight:bold;" target="_blank" title="Click to know more about 500J">500J</a>`<br/>`-505J`<br/>`+505J`</p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :`DeltaU =q+w` <br/> For well insulated <a href="https://interviewquestions.tuteehub.com/tag/container-20566" style="font-weight:bold;" target="_blank" title="Click to know more about CONTAINER">CONTAINER</a>, process is adiabatic , `q=0` <br/> `:. DeltaU =w= - P DeltaV`<br/> `= - 2.5 atm ( 4.5 - 2.5) L`<br/> `=- 5L atm` <br/> `= 5xx 101.3 J= - 506.5 J ` <br/> `= -505J`</body></html> | |