MHT CET20244 May 2024Evening ShiftChemistryElectrochemistryActual
Which of the following expressions for conductivity of solution of an electrolyte is NOT correct?
Options
- Ak = 1
- Bk = G 1 a
- Ck = 1 R a 1
- Dk = . c
Correct answer
B. k = G 1 a
Step-by-step solution
Conductivity ( ( )) is defined as the reciprocal of resistivity ( ( )). Thus: ( = 1 ) For a given cell, the relationship between conductivity and conductance (G) is: ( =G ( cell constant ) ) The cell constant is often denoted by ( l A ) (length of the conducting path over the cross-sectional area). Checking each option: Option A: ( = 1 ) This is the fundamental definition: Conductivity is the inverse of resistivity. This is correct. Option B: ( =G 1 a ) If (a ) represents the cell constant (which is usually ( l A )