Zubeen Tolani
Last Activity: 13 Years ago
Ans .2 > (x* represents x dash for any variable x)
for gas eqtn (initial conditio) PV=nRT ________(1)
n= 2 (of O2) (3/4 moles of A wuldnt be incluided becoz its solid nd only gases are to be included.)
hence n=2
nd for final condition (after reducing the temp to initial)
P*v*=n*RT* __________(2)
now from questn.. T* = T, P* = P/2 , V=v*(container is seald)
hence by (1)/(2)
n/n* = 2 .... n*=1
now if we write reaction as 3/4 A4 + 2O2 --> 1(let x)
that x shuld include all the 3 atoms of A nd 4 atoms of O (on LHS of reaction).
hence ans .. A3O4