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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Give SI unit of resistivity. - Chemistry

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प्रश्न

Give SI unit of resistivity.

State resistivity of S.I unit.

अति संक्षिप्त उत्तर
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उत्तर

The SI unit of resistivity is Ω m.

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Electrical Conductance of Solution
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 5: Electrochemistry - Very short answer 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.


The molar conductivity of 0.05 M BaCl2 solution at 25° C is 223Ω-1 cm2 mol-1. What is its conductivity?


What is a cell constant? What are its units? How is it determined experimentally?


Answer the following in brief.

Explain the effect of dilution of the solution on conductivity.


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 three important steps required to determine molar conductivity.


Write relation between electrolytic conductivity and molar conductivity.


The molar conductance of 0.001 M acetic acid is 50 ohm−1 cm2 mol−1. The limiting molar conductance is 250 ohm−1 cm2 mol−1. What is its degree of ionization?


The conductivity of 0.02 M solution of NaCl is 2.6 × 10−2 S cm−1. What is its molar conductivity?


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 SI unit of resistivity and molar conductivity are respectively ____________.


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 ______.


In 2 hours, a certain current liberates 0.504 g hydrogen. How many grams of copper can be deposited by the same current flowing for the same time in a CuSO4 solution?

(Molar mass of Cu = 63.5 g mol−1, H2 = 2.0 g mol−1)


What is the relation between cell constant, conductivity and electrical resistance?


If the conductivity of 0.08 M KCl solution is 2 × 10-2 Ω-1, what is the molar conductivity of the solution?


The value of [H3O+] in mol lit–1 of 0.001 M acetic acid solution (Ka = 1.8 × 10–5) is ______.


Specific conductance of 0.1 M sodium chloride solution is 1.06 × 10−2 ohm−1 cm−1. Its molar conductance in ohm−1 cm2 mol−1 is ______.


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?


Write the relation between molar conductivity and molar ionic conductivities for the electrolytes:

  1. Na2SO4
  2. AlCl3

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