11NOT SURE, but
(A) → (Q)
(B) → (P), (Q), (R)
(C) → (P), (Q), (R), (S)
(D) → (P), (Q), (R)
Sorry, No idea abt option (T) [2] [92]
4ANS GIVEN IS
P Q R T
P Q R T
P Q R S T
P Q R T
But I doubt the given ans
Let's c if someone else confirms the ans
39Molar conductance = K x V = G x l/A x 1000/Molarity where K is kappa symbol and is conductivity, G is conductance(reciprocal of resistance), l is distance of separation between electrodes and A is area of electrodes.
So (A) -> (P) as molarity depends on temperature, (Q) which is obvious, (R) as conductivity depends on nature of substance involved and (T) I am not sure about.
Emf of a cell is related to standard electrode potential of cell, number of electrons involved in cell reaction and concentrations of species by Nernst equation.
Hence (B) -> (P) [Concentrations], (Q), (R) again not sure about (T)
Gibbs Free energy change is given by delta G = -(nFE) = -2.303RT log Kc
where E is standard electrode potential.
Hence (C) -> (P) [Obvious], (Q) [Dependent on Kc], (R), (S)[n is present]
Conductivity(denoted by kappa symbol) is = 1/R x l/A = G x l/A
This you can work out for yourself.
Dunno about (T) in each of the options...how does a complex forming ligand affect electrochemistry? Will have to read coordination compounds again.
11
Tush Watts
·2010-01-05 23:44:59
@ Pritish,
If Molar conductance is related to = K x V = G x l/A x 1000/Molarity where K is kappa symbol and is conductivity, G is conductance(reciprocal of resistance), l is distance of separation between electrodes and A is area of electrodes........ etc all these factors, but that doesn't means Molar conductance is dependent on all these factors.
For eg, if R = roh (l/ a)... where R = resistance , roh = resistivity/ speciic resistance... and (l/z) = cell const
Here R depends upon cell const but roh doesn't
39
Pritish Chakraborty
·2010-01-05 23:48:28
R = roh(l/a) = roh x G" where G" is cell constant
How is molar conductance not dependent on those factors..? I didn't get you..
Okay for a certain electrode system G" is constant, G" cannot change so molar conductance cannot depend on it. But the fact here is, they have not mentioned these values for a specific system. They have mentioned in general.
roh is dependent on nature of material..ab yaad aaya...roh = m/(ne2tau)
11
Tush Watts
·2010-01-05 23:52:28
Are I mean roh doesn't depends on cell const. though acc to formula R = roh (l/a)... roh shuld be dependent on R and cell const.
But actulally it doesn't.
Siliarily, if Molar conductance = K x V = G x l/A x 1000/Molarity
that doesn't means it is dependent on cell const, molarity, etc.
