1for q 1 find BO for O2-, O-, O2- and O3- greatest Bo = greatest stability
1. which emperical formula for oxide of potasium is least stable ?
a>K2O b>KO c> KO2 d>KO3
2. The pressure at which half of an ideal binary liquid solution , containing 1 mole of each component goes into vapor phase is ( where PA0 and PB0 are vapour pressures of pure A and pure B .)
a>PA0 PB0
b> √ PA0PB0
c> PA0/PB0
d> √PA0/PB0
3. at the temperature of liquifaction of air , the ratio OF para and ortho forms of hydrogen is_____________ at room temperature... while at elevated temperature it is _____________________.
a>1:1 ; 1:3
b>1:2 ; 1:3
c>1:3 ; 1:1
d>1:3 ;1:2
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11 Answers
1
1playpower kahan hai bhai kam se kam sahi galat to bata
waise in Q 2 i just cheaked the dimensions banayein nahi hain
1Q 2 is like the dumbest question ive ever seen.............LOOK AT IT DIMENSIONALYY hehehehe
1yup guys [4] ans for 2 is b> but i was asking for a clear explanation.. dimension dekhe toh [3] [3] .. well try for q 3
13rd banega kaise its factual i suppose
ans a) hai shayad [7][7]
11Q3
At standard temperature and pressure, hydrogen gas contains about 25% of the para form and 75% of the ortho form, also known as the "normal form". The equilibrium ratio of ortho hydrogen to para hydrogen depends on temperature, but since the ortho form is an excited state and has a higher energy than the para form, it is unstable and cannot be purified.
so it is 1:3 in normal form
The uncatalyzed interconversion between para and ortho H2 increases with increasing temperature; thus rapidly condensed H2 contains large quantities of the high-energy ortho form that convert to the para form very slowly
it is 1:1 in normal form
so t must be c