Animalscaretips
The ions become mobile after the compound is heated to its melting temperature, becomes fluid, and the ions are freed from their positions in their crystalline lattice. The large number of mobile ions then causes the molten compounds to become good electrical conductors.
- Why does the electrical conductivity of ionic compounds change when dissolved in water?
- Why does an ionic compound conduct electricity when melted?
- What happens to an ionic compound when it melts?
- What affects electrical conductivity of ionic compounds?
- Why do ionic compounds have different conductivity?
- Why do ionic compounds not conduct electricity when solid?
- Why do ionic compounds have high melting?
- Why do ionic compounds conducts electricity in molten state whereas not conducts electricity in the fused state?
- What happens to an ionic substance when it is melted or dissolved in water?
- What happens when a compound melts?
- What affects the melting point of a compound?
- What determines electrical conductivity?
- What does electrical conductivity depend on?
Why does the electrical conductivity of ionic compounds change when dissolved in water?
why does the electrical conductivity of ionic compounds change when they are dissolved in water? when ionic crystals dissolve in water, the ionic bonds are broken & the ions move around & conduct current. (Current is the flow of charged particles.)
Why does an ionic compound conduct electricity when melted?
Ionic compounds conduct electricity when molten (liquid) or in aqueous solution (dissolved in water), because their ions are free to move from place to place. Ionic compounds cannot conduct electricity when solid, as their ions are held in fixed positions and cannot move.
What happens to an ionic compound when it melts?
When heated, the ionic solid melts to form a liquid, or a molten, ionic compound. The ions in the molten, or liquid, ionic compound are free to move out of the lattice structure.
What affects electrical conductivity of ionic compounds?
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. 1) The concentration of dissolved ions. An electrolyte consists of dissolved ions (such as Na+ and Cl-) that carry electrical charges and can move through water.
Why do ionic compounds have different conductivity?
Ionic compounds are formed from strong electrostatic interactions between ions, which result in higher melting points and electrical conductivity compared to covalent compounds. Covalent compounds have bonds where electrons are shared between atoms.
Why do ionic compounds not conduct electricity when solid?
Ionic substances will not conduct electricity as solids. This is due to the fact that ions are not free to move in a solid as they are arranged in an ionic lattice. When an ionic substance is dissolved in solution or molten the ionic lattice is broken down allowing the ions to move freely and so conduction occurs.
Why do ionic compounds have high melting?
Ionic compounds are held together by strong electrostatic forces of attraction between oppositely charged ions. These compounds have high melting points and high boiling points because of the large amounts of energy needed to break the many strong bonds.
Why do ionic compounds conducts electricity in molten state whereas not conducts electricity in the fused state?
Ionic compounds conduct electricity in solution because they are made up of electrically charged ions but covalent compounds are made up of electrically neutral molecules so they do not conduct electricity. Hence ionic compounds conducts electricity in molten state and does not conducts electricity in the fused state.
What happens to an ionic substance when it is melted or dissolved in water?
When ionic compounds dissolve in water, they break apart into the ions that make them up through a process called dissociation. ... If the force between the ions and the water molecules is strong enough to break the bonds between the ions, the compound dissolves.
What happens when a compound melts?
Melting is a process that causes a substance to change from a solid to a liquid. Melting occurs when the molecules of a solid speed up enough that the motion overcomes the attractions so that the molecules can move past each other as a liquid.
What affects the melting point of a compound?
The force of attraction between the molecules affects the melting point of a compound. Stronger intermolecular interactions result in higher melting points. ... In organic compounds the presence of polarity, or especially hydrogen bonding, generally leads to higher melting point.
What determines electrical conductivity?
The electrical conductivity of a metal (or its reciprocal, electrical resistivity) is determined by the ease of movement of electrons past the atoms under the influence of an electric field.
What does electrical conductivity depend on?
The value of the electrical conductivity depends on the ability for electrons or other charge carriers such as holes to move within the lattice of the material. Highly conductive materials such as copper allow the free movement of electrons within their molecular lattice. There are free electrons within the lattice.
