मराठी
महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

SI unit of conductivity is _______.

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प्रश्न

SI unit of conductivity is _______.

पर्याय

  • Ω-1 m-1

  • Ω cm-1

  • Ω m-1

  • Ω-1 m2 mol-1

MCQ
रिकाम्या जागा भरा
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उत्तर

SI unit of conductivity is Ω-1 m-1.

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पाठ 5: Electrochemistry - Multiple choice questions

संबंधित प्रश्‍न

0.05 M NaOH solution offered a resistance of 31.6 Ω in a conductivity cell at 298 K. If the cell constant of the cell is 0.367 cm-1, calculate the molar conductivity of NaOH solution.


Answer the following:

What is Kohlrausch law of independent migration of ions? How is it useful in obtaining molar conductivity at zero concentration of a weak electrolyte? Explain with an example.


Kohlrausch law is applicable for the solution _______.


The molar conductivity and conductivity of AgNO3 solution is 121.4 Ω–1 cm2 mol–1 and 2.428 × 10–3 Ω–1 cm–1 at 25 °C. What is molar concentration of AgNO3 solution?


Write an equation that shows the relationship between molar conductivity and degree of dissociation of weak electrolyte.


Write relation between electrolytic conductivity and molar conductivity.


Molar conductance of BaCl2, H2SO4 and HCl at infinite dilution are X1, X2 and X3 respectively. Molar conductance of BaSO4 at infinite dilution is ____________.


The molar conductances at infinite dilution `(∧_0)` for electrolytes B+A and C+A are 140 and 120 S cm2 mol−1. The molar conductance at infinite dilution for B+X is 198 S cm2 mol−1. The `∧_0` (in S cm2 mol−1) of C+X is __________.


The resistance of `1/10`M solution is 2.5 × 103 ohm. What is the molar conductivity of solution? (cell constant = 1.25 cm-1).


A conductivity cell having cell constant 8.76 cm−1, placed in 0.01 M solution of an electrolyte offered a resistance of 1000 ohms. What is the specific conductance of electrolytes?


Conductivity of KCI solution is 0.0027 Ω−1 m−1 at 25°C. The resistance of the solution is 82.4 Ω. The cell constant is ____________ m−1.


The molar conductivities at zero concentration for Ca2+ and CaCl2 are 104 and 256.8 Ω−1 cm2 mol−1 respectively. The molar conductivity at zero concentration for Cl is ____________.


The molar conductivities at infinite dilution for sodium acetate, HCI and NaCl are 91 S cm2 mol-1, 425.9 S cm2 mol-1 and 126.4 S cm2 mol-1 respectively. The molar conductivity of acetic acid at infinite dilution is ______.


The resistance of a conductivity cell containing 0.001 M KCl solution at 298 K is 1500 Ω. What is the cell constant if conductivity of 0.001 M KCI solution at 298 K is 0.146 × 10−3 S cm−1?


Which of the following graph represents the variation of `∧` with `sqrt"c"` for acetic acid solution?


What is the cell constant of `"N"/10 "KCl"` solution at 25°C, if conductivity and resistance of a solution is 0.0112 Ω−1 cm−1 and 55.0 Ω respectively?


The distance between electrodes of a conductivity cell is 0.98 cm and area of cross section is 1.96 cm2. What is the cell constant?


A conductivity cell dipped in 0.01 M AgNO3 solution gives a resistance of 3160 ohms. If cell constant is 0.47 cm−1, what is the conductivity of AgNO3 solution?


If the resistivity of 0.1 M KCI solution is 50 Ω cm, what is it's molar conductivity?


What is the SI unit of conductivity?


Which of the following has least conductivity in aqueous solution? 


A conductivity cell filled with 0.02 M AgNO3 gives at 25°C resistance of 947 ohms. If the cell constant is 2.3 cm-1, what is the molar conductivity of 0.02 M AgNO3 at 25°C?


What is the SI unit of molar conductivity?


Explain the determination of molar conductivity of a weak electrolyte at infinite dilution or zero concentration using Kohlrausch's law.


Specific conductance of 0.1 M HNO3 is 6.3 × 10−2 ohm−1 cm−1. The molar conductance of the solution is ______.


When electric current is passed through acidified water, 112 mL of hydrogen gas at STP collected at the cathode in 965 seconds. The current passed in amperes is ______.


Two solutions have the ratio of their concentrations 0.4 and ratio of their conductivities 0.216. What is the ratio of their molar conductivities?


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