1.

Resistance of 1 N CH_(3)COOH is 250 ohm. This conductive cell has constant value of 1.15 cm^(-1), then what is equivalent conductivity of 1N CH_(3)COOH ? (Ohm^(-1)" "cm^(2)" "equ^(-1)).

Answer»

18.4
4.6
9.2
2.3

Solution :(i) CONDUCTIVITY=`(C)=(1)/(R)=(1)/(25)`
=0.004 `Ohm^(-1)`
(ii) Specific conductivity :
(K)=conductivity`xx`cell constant
`=0.004xx1.15(ohmxxcm^(-1))`
`=0.00460ohmxxcm^(-1)`
(III) equivalent conductivity :
`(LAMDA)=(1000K)/(C)=(1000xx0.0046)/(1)`
`=4.6ohm^(-1)CM^(2)equ^(-1)`.


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