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Why does the electrical conductivity of ionic compounds change when they are melted or dissolved in water?
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Why does the electrical counductivity of ionic compounds change when they are dissolved in water?
The ions dissociate (separate) in solution and can conduct electricity.
Is electrical conductivity physical change or chemical?
Yes
Why does the electrical conductivity of ionic compounds change when they are dissolved in water?
Electric current is the flow of charged particles. When ionic crystals disolve in water, the bonds between ions are broken. As a result, the ions are free to move about, and the solution conducts current. Likewise, when an ionic compound melts, the ions are able to move freely, and the liquid conducts current. In contrast, ionic compounds in solid form do not conduct current well. The ions in the solid crystal are tightly bound to each other and cannot move from place to place. If charged particles cannot move, there is no current.
What matter is heat conductivity chemical or physical change?
Thermal conductivity is a physical property.
How do electrical conductivity of ionic compounds change when they are melted or dissolved in water?
When ionic compounds are placed in water, they cause the water to conduct electricity. Normally, water doesn't conduct electricity well at all. However, when salts dissolve in water, they break up into their constituent cations and anions and it is the presence of these ions that allows it to conduct electricity. Because salts conduct electricity when dissolved in water, they are referred to as electrolytes. In the same way, pure salts conduct electricity only when they are melted. As a solid, the anions and cations in an ionic compound are locked in place and unable to move electrical charge. However, when the ionic compound is melted, these ions are free to move around and conduct charge. Electrolytes are compounds that conduct electricity when dissolved in water. Many ionic compounds are considered to be electrolytes. However some ionic compounds don't dissolve in water. As a result, they do not share this property.
How does electric conductivity of ionic compounds change when they are melted or dissolved in water?
Melting or dissolving ionic compounds increases the electrical conductivity. This is because there are free mobile charged ions that can move in the electric field and conduct current.
How does the elctrical conductivity of ionic compounds change when theey are melted or dissolved in water Why is this so?
Electrical conductivity rises dramatically, and this is due to mobile ions that move in solution or the molten salt under the influence of an electrical field. These mobile ions carry the current.
How does the electrical conductivity of ionic compounds change when they are melted or dissolve in water?
Melting or dissolving ionic compounds increases the electrical conductivity. This is because there are free mobile charged ions that can move in the electric field and conduct current.
Is electrical conductivity a chemical change?
Electrical conductivity is a physical property, not a change.
Why does the electrical counductivity of ionic compounds change when they are dissolved in water?
The ions dissociate (separate) in solution and can conduct electricity.
What factor should change in electrical conductivity of metals and non metals?
Electrical conductivity depends on temperature.
Is electrical conductivity physical change or chemical?
Yes
How conductivity effects power?
Conductivty is an electrical property of conducting materials. Silver has the higest conductivity, then copper then aluminimum. Conductivity does not really change with electrical wiring so the power will not be directly affected.
What change occurs when AgCl is doped with CdCl2?
The electrical conductivity is modified.
Why does the electrical conductivity of ionic compounds change when they are dissolved in water?
Electric current is the flow of charged particles. When ionic crystals disolve in water, the bonds between ions are broken. As a result, the ions are free to move about, and the solution conducts current. Likewise, when an ionic compound melts, the ions are able to move freely, and the liquid conducts current. In contrast, ionic compounds in solid form do not conduct current well. The ions in the solid crystal are tightly bound to each other and cannot move from place to place. If charged particles cannot move, there is no current.
Is copper conducts electricity chemical or physical change?
Electrical conductivity is not a change but is a physical property.
What is the change in conductivity as the concentration of the NaCl solution was increased by the addition of NaCl drops?
The electrical conductivity of the solution will be higher if the concentration of NaCl increase.
