Please help me dont just comment for points please i actually need help
1 answer:
Answer:
Kr < Ar < Ne < N (N is fastest and Kr is slowest)
Explanation:
According to graham law of diffusion, rate of diffusion of a gas is inversely proportional to the square root of molar mass of the gas.
Where R is rate of diffusion and M is molar mass
Molar masses of given gases are - Ar(40 g/mol), Ne(20 g/mol), N(14 g/mol) and Kr(84 g/mol)
So molar mass order : Kr > Ar > Ne > N
Hence rate of diffusion order: Kr < Ar < Ne < N (N is fastest and Kr is slowest)
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17.40 sec is the time will take to smell second perfume after diffusion takes place
Acc. to Graham's law of Diffusion
Diffusion of Gas inversely proportional to square root of its Molecular mass.
<u>rb (Perfume B)</u>
ra(perfume A)
= its equation (1)
Give molar mass of Perfume A = 275 g/mol
molar mass of Perfume B= 205g/mol putting value in (1)
»
<em> its eq (2)</em>
» Perfume B will defuse 1:16 times faster than perfume A.
Hence, perfume B will be first smelled by Person.
Sf Equal volume V of two goes diffuse in t1 and t2 sec. respectively ton
Now,, from eq(2) toto
1/1:15 =
ta
Given tb =the smell of Perfume B as it diffuse faster
ta= 1.15 x 15 see
=ta2=17.40 sec
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