plz help!!!!!!

A given sample of N2O4 in a closed vessel shows 20% dissociation in NO2 at 27°C and 760 torr. The sample is now heated upto 127°C and the analysis of mixture shows 60% dissociation at 127°C.
ques.1. The total pressure of equillibrum mixture in atm at 127°C is
a. 1.78 atm
b. 2.01 atm.
c. 3.18 atm.
4. 1.33 atm

ques.2. The molecural weight of mixture at 27°C is
a. 76.77
b. 78.69
c. 66.52
d. 80.24

1 Answers

62
Lokesh Verma ·

A given sample of N2O4 in a closed vessel shows 20% dissociation in NO2 at 27°C and 760 torr. The sample is now heated upto 127°C and the analysis of mixture shows 60% dissociation at 127°C.
ques.1. The total pressure of equillibrum mixture in atm at 127°C is
a. 1.78 atm
b. 2.01 atm.
c. 3.18 atm.
4. 1.33 atm

P(1-α) 2Pα

P(1+α)=760

(2Pα)2/P(1-α) = K

you have found out K

now you know the new α

can you solve it?

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