A student forgot to add the reaction mixture to the round bottomed flask at 27^(@)C but instead, he/she placed the flask on the flame. After a lapse of time, he realized his mistake, and using a pyrometer, he found the temperature of the flask was 477^(@)C. What fraction of air would have been expelled out ?

A student forgot to add the reaction mixture to the round bottomed fla

1.	A student forgot to add the reaction mixture to the round bottomed flask at 27^(@)C but instead, he/she placed the flask on the flame. After a lapse of time, he realized his mistake, and using a pyrometer, he found the temperature of the flask was 477^(@)C. What fraction of air would have been expelled out ?
Answer» <html><body><p></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> :Suppose <a href="https://interviewquestions.tuteehub.com/tag/volume-728707" style="font-weight:bold;" target="_blank" title="Click to know more about VOLUME">VOLUME</a> of vessel =V `cm^(3)`,i.e.,volume of air in the flask at `<a href="https://interviewquestions.tuteehub.com/tag/27-298706" style="font-weight:bold;" target="_blank" title="Click to know more about 27">27</a>^(@)C=V cm^(3)`. <br/> `(V_(1))/(T_(1))=(V_(2))/(T_(2)),""i.e.,""(v)/(<a href="https://interviewquestions.tuteehub.com/tag/300-305868" style="font-weight:bold;" target="_blank" title="Click to know more about 300">300</a>)=(V_(2))/(<a href="https://interviewquestions.tuteehub.com/tag/750-335306" style="font-weight:bold;" target="_blank" title="Click to know more about 750">750</a>)"or"V_(2)=2.5" V"` <br/> `:. """Volume expelled"=2.5" V"-V=1.5" V"` <br/> `:. """Fraction of air expelled" `=(1.5" V")/(2.5" V")=(3)/(5)`</body></html>