S Wh Cmput listest bekow has the greatest molar solutiliy in water? 4) Arrange the following gases in order of increasing average molecular speed at 25 O2, 02, F2, N2 D)02 Solution 4) average molecular speed (v a )= ?(8RT÷?M) Where R= universal gas constant , T= temperature, M= molar mass. V a is inversely proportional to ?M So molecules with highest molar mass will have lowest V a. Option B is the right answer. 5) no of moles= given mass / molar mass No of moles of Ne= 20÷20= 1 No of moles of Ar= 10÷40= 0.25 V = 1200 mL = 1.2 L Assume T= 298 K Partial pressure of Ne = no of moles of neon × R× T÷ V =(1×0.08206 L atm/(mol.K) × 298 K)÷(1.2L) =20.378 atm Option B 6) all 3 are colloids. 3rd question, ksp is not readable. .

1. S Wh Cmput listest bekow has the greatest molar solutiliy in water? 4) Arrange the following
gases in order of increasing average molecular speed at 25 O2, 02, F2, N2 D)02
Solution
4) average molecular speed (v a )= ?(8RT÷?M)
Where R= universal gas constant , T= temperature, M= molar mass.
V a is inversely proportional to ?M
So molecules with highest molar mass will have lowest V a.
Option B is the right answer.
5) no of moles= given mass / molar mass
No of moles of Ne= 20÷20= 1
No of moles of Ar= 10÷40= 0.25
V = 1200 mL = 1.2 L
Assume T= 298 K
Partial pressure of Ne = no of moles of neon × R× T÷ V
=(1×0.08206 L atm/(mol.K) × 298 K)÷(1.2L)
=20.378 atm
Option B
6) all 3 are colloids.
3rd question, ksp is not readable.