بوابة الثانوية العامة المصرية - ارجوكم حل هذه المسئلة

بوابة الثانوية العامة المصرية (https://www.thanwya.com/vb/index.php)

- Chemistry (https://www.thanwya.com/vb/forumdisplay.php?f=1285)

- - ارجوكم حل هذه المسئلة (https://www.thanwya.com/vb/showthread.php?t=641595)

enas1970

15-04-2015 02:22 AM

ارجوكم حل هذه المسئلة

a slosed container of 2 litres volume contains 8 moles of nitrogen gas and 12 moles of oxygen gas react togather according to the equation : N2g +1/2 O2g N2O g and at equliberium the sum of moles of reactant and products is 17 moles :

a- calculate the number of moles of each gas at equliberium

b - calculate the equlibrium constamt Kc of the reaction

enas1970

19-04-2015 01:19 PM

ليه مفيش حد بيرد على هذا السؤال

heromoto96

24-04-2015 04:51 PM

correct equation N2+2O2-----=2NO2
here is excess N2 in the rx so there is only 6 moles reacting
and 2 moles excess1
15=the total reacting moles =17-2(the excess
Now the sum of moles of the equation 5x=15 x=3
The eq now is 3N2+6O2------=6NO2

heromoto96

24-04-2015 05:52 PM

بعد كده تحسب التركيز و تستخدم قانون الkc

enas1970

26-04-2015 12:59 PM

thank u..................

saifsoliman

30-04-2015 08:43 AM

number of moles at equilibrium ,nitrogen =2
oxygen =9
di nitrogen oxide = 6
so the kc= 1.414
best regards
Saif Soliman
saif.soliman@stemegypt.edu.eg

saifsoliman

01-05-2015 09:03 AM

Dear colleague, you suppose the reaction is complete reaction and neglected its reversibility ,from this point you calculate the excess reagent and complete the problem . but the correct answer you can see it below with saif soliman and you can contact me to discuss this issue best regards

جميع الأوقات بتوقيت GMT +2. الساعة الآن 02:30 PM.