

InterviewSolution
Saved Bookmarks
1. |
5 mole of an ideal gas expands isothermally and irreversibly from a pressure of 10 atm to 1 atm against a contant external pressure of 1 atm. W_("irr") at 300K is: |
Answer» <html><body><p>`-15.921kJ`<br/>`-11.224kJ`<br/>`-110.83kJ`<br/>none of these</p>Solution :`W_("irr") = - P_("ext") (<a href="https://interviewquestions.tuteehub.com/tag/delta-947703" style="font-weight:bold;" target="_blank" title="Click to know more about DELTA">DELTA</a> V) = -1 <a href="https://interviewquestions.tuteehub.com/tag/xx-747671" style="font-weight:bold;" target="_blank" title="Click to know more about XX">XX</a> ((nRT)/(P_(2)) - (nRT)/(P_(1)))` <br/> `= -1 xx (<a href="https://interviewquestions.tuteehub.com/tag/5-319454" style="font-weight:bold;" target="_blank" title="Click to know more about 5">5</a> xx 0.0821 xx 300) ((1)/(1) - (1)/(10))` <br/> `= -110.835` L-atm = 11.22 <a href="https://interviewquestions.tuteehub.com/tag/kj-1063034" style="font-weight:bold;" target="_blank" title="Click to know more about KJ">KJ</a></body></html> | |