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A sample of N_(2)O_(4(g)) with a pressure of I atm is placed in a flask. When equilibrium is reached, 20% N_(2)O_(4(g)) has been converted to NO_(2(g)) .N_(2)O_(4(g)) hArr 2NO_(2(g)), If the orginal pressure is made 10% of the earlier, then percent dissociation will be

Answer» <html><body><p>0.<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a><br/>0.42<br/>0.54<br/>0.62</p>Solution :<img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_ELT_AO_CHE_XI_V01_B_C04_E03_006_S01.png" width="80%"/> <br/> Parpal pressure `((1-x)/(1+x))P, ((2x)/(1+x))P` <br/> `K_(P)=(4x^(2)P)/(1-x^(2))` <br/> In case-I: P=1 atm and x = 0.20 <br/> In case II : P=0.1 atm 10% of the <a href="https://interviewquestions.tuteehub.com/tag/earlier-963550" style="font-weight:bold;" target="_blank" title="Click to know more about EARLIER">EARLIER</a> pressure and x=? <br/> `(4(0.2)^(2) <a href="https://interviewquestions.tuteehub.com/tag/xx-747671" style="font-weight:bold;" target="_blank" title="Click to know more about XX">XX</a> 1)/([1-(0.2)^(2)])=(4x^(2)(0.1))/(1-x^(2))` <br/> `(0.04)/(1-0.04)=(x^(2)(0.1))/((1-x^(2)))(x^(2))/(1-x^(2))=0.4167` <br/> `x^(2)=0.2941, x=0.2941 <a href="https://interviewquestions.tuteehub.com/tag/implies-1037962" style="font-weight:bold;" target="_blank" title="Click to know more about IMPLIES">IMPLIES</a>` <a href="https://interviewquestions.tuteehub.com/tag/thus-2307358" style="font-weight:bold;" target="_blank" title="Click to know more about THUS">THUS</a> 54.23%</body></html>


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