What causes a solution to be conductive?

What causes a solution to be conductive?

When a solution conducts electricity, the charge is carried by ions moving through the solution. Ions are atoms or small groups of atoms that have an electrical charge. Some ions have a negative charge and some have a positive charge. Pure water contains very few ions, so it does not conduct electricity very well.

Why is H+ more conductive than Na+?

In aqueous solution H+ remains as H3O+, but Na+ remains mainly as [Na(H2O)6]+. Due to bulkier size of hydrated Na+, it’s ionic conductance is too less than that of H3O+. So, H+ is more conductive than Na+. Due to bulkier size of hydrated Na+, it’s ionic conductance is too less than that of H3O+.

Is conductivity proportional to concentration?

The more concentrated a solution is, the higher the conductivity is. In most cases it is a proportional relationship. As the ion concentration increases, the conductivity increases.

What happens to conductivity when concentration increases?

Molar conductance is dependent on the concentration of the electrolyte. When the solution is dilute the number of ions available per unit volume reduces, resulting in the reduction of the conductivity. The molar conductivity of both weak and strong electrolytes increases with a decrease in concentration or dilution.

Why does increasing concentration increase conductivity?

As you increase the concentration of the solution you get more charge carrying ions, so the conductivity increases. But because the ions get closer together they begin to interact and slow each other down so the conductivity per mole of the ions is reduced.

Is conductivity directly proportional to temperature?

The conductivity process in aqueous solutions is by means of ionic motion, and is different from that of metals. The conductivity invariably increases with increasing temperature, opposite to metals but similar to graphite.

What are major differences between temperature and conductivity?

The electrical conductivity of a conductor decreases with increase in temperature because the rise in temperature increases the collision of electrons that disturbs its free flow. Pure semi-conductors become insulators at absolute zero (0 K) as there are no free electrons.

Does conductivity of water increase with temperature?

Conductivity is temperature dependent. When water temperature increases, so will conductivity 3. For every 1°C increase, conductivity values can increase 2-4% 3. Temperature affects conductivity by increasing ionic mobility as well as the solubility of many salts and minerals 30.

Why does conductance increase with temperature?

In metals, conductivity is due to movement of free electrons. When temperature increases, the vibration of metal ions increases. In electrolytic conductors, the ions are charge carriers and with increase in temperature, ionization increases and hence, conductivity increases.

Does cell constant depend on temperature?

Cell Constant = Distance between electrodes / Area of the plates of the electrodes. So it is a constant for a battery cell. Conductivity and specific Conductivity is reciprocal of resistance, and is dependent on temperature, electrolyte and concentration.

What is the effect of temperature on electrolytic conductance?

ANSWER: As temperature increases electrolytic conductivity also increases because with the increase in temperature ionisation increases and also the movement of ions.

What is the effect of temperature on metallic and electrolytic conductor?

The conductivity of an electrolyte depends upon the temperature. With increase in temperature, the conductivity of an electrolyte increases whereas metallic conduction decreases with increase in temperature. On increasing temperature , metallic conductivity decreases while electrolytic conductivity increases .

What are the factors affecting electrolytic conductance?

The conductivity of an electrolyte is therefore affected by the following factors:

• The concentration of ions in solution. The higher the concentration of ions in solution, the higher its conductivity will be.
• The type of substance that dissolves in water.
• Temperature.

What are the factors affecting conductance?

There are three main factors that affect the conductivity of a solution: the concentrations of ions, the type of ions, and the temperature of the solution.

Which one of the following factor does not affect the electrolytic conductance?

The factor which is not affecting the conductivity of any solution is. Dilution, temperature and nature of electrolyte affect the conductivity of solution.

How many types of conductance are there?

The above graph shows the relation between the molar conductance and the nature of the electrolytes. We know that the electrolytes are of three types depending on the concentration of ions, that is, strong electrolyte, weak electrolyte and intermediate electrolyte.

What is the unit of Kappa?

The units of specific conductance (κ) are R is measured in ohm, is length (l) in measured in cm and cross-sectional area in cm2, then units of κ are ohm-1cm-1 However, inSI system the unit for conductance is ‘Siemeans’ and given the sysmbol ′S′. Hence, the unit for conductivity will be Sm-1. (1S=1Ω-1).