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The reasons i have learned in my chem classes is that because the trend on the Periodic Table is that as you go down metallic character increases and as you go right to left on the periodic table metallic character increases.
This trend is also the same with melting and boiling points of all elements.
When metals solidify they form metallic-metallic bond. They do not share electrons or steal electrons, but it creates something called an electron sea where each atom of a metal offers some of its valence electrons to this electron sea so that the electrons move around freely filling all the valence shells of atoms in a block of metal.
Another reason why metals solidify is because their melting points are at a higher temperature then our planet reaches. Its the exact same reason why water turns to ice in winter
What else can I help you with?
Why doesn't the temperature increase as the liquid change into gas?
When a liquid changes into a gas, it undergoes a phase change called vaporization. During this process, the energy is used to break the intermolecular bonds holding the liquid together instead of increasing the temperature. This is why the temperature remains constant during the phase change until all the liquid has converted into gas.
When water is heated the temp reaches a constant value and forms a plateau on the graph what does the plateau indicate?
It indicates that the temperature does not change during the phase change from liquid to gas until the change is complete. During the phase change, the heat energy added to the water goes into breaking hydrogen bonds between water molecules, so it does not cause an increase in temperature during that time.
Boiling liquid maintains a constant temperature?
The boiling point temperature remains constant because liquids evaporate at this point. If the temperature drops the liquid will no longer boil. At a higher temperature the vapor becomes hotter, not the liquid.
Whilst a substance is boiling why doesn't it get hotter?
During boiling, the temperature does not increase because the heat energy is being used to convert the liquid into vapor rather than raise the temperature. This phase change from liquid to gas requires energy, known as latent heat, which keeps the temperature constant. Once all the liquid has been converted into vapor, further heating will then increase the temperature.
What is the difference between latent heat of fusion and latent heat of vapourization?
the heat which is absorbed by a substance for changing solid into liquid state by keeping temperature constant is called latent heat of fusion while the heat which is evolved during phase change of liquid to vapour state at constant temperature is called latent heat of vapourization
Does temperature change during condensation?
No, temperature remains constant during the process of condensation. As a gas cools and transitions to a liquid state, the temperature stays the same until all the gas has condensed into a liquid.
What happen to the temperature when ice is heated?
During a phase change (from solid to liquid, as in melting and also from liquid to gas as in boiling) the temperature remains constant, as all of the energy is going to affecting the change, rather than raising the temperature. Once it has changed from solid to liquid, the liquid can then raise in temperature.
How is temperature used to recognize a phase change?
Temperature is used to recognize a phase change by monitoring the point at which the temperature remains constant during a transition from one phase to another. This constant temperature indicates a change in the internal energy of the substance rather than a change in temperature. This point is known as the melting point for solid to liquid transitions, and the boiling point for liquid to gas transitions.
What is the amount of heat to change liquid into solid at constant temperature?
To change a liquid into solid at constant temperature, an amount of heat is released equal to the latent heat of that liquid. For water it is about 80 calories per gram.
Why doesn't the temperature increase as the liquid change into gas?
When a liquid changes into a gas, it undergoes a phase change called vaporization. During this process, the energy is used to break the intermolecular bonds holding the liquid together instead of increasing the temperature. This is why the temperature remains constant during the phase change until all the liquid has converted into gas.
When water is heated the temp reaches a constant value and forms a plateau on the graph what does the plateau indicate?
It indicates that the temperature does not change during the phase change from liquid to gas until the change is complete. During the phase change, the heat energy added to the water goes into breaking hydrogen bonds between water molecules, so it does not cause an increase in temperature during that time.
How ice is isothermal?
Ice is considered isothermal when its temperature remains constant during a phase change, such as when it melts or freezes. This is because the energy being absorbed or released during the phase change does not affect the temperature of the ice until the entire phase change is complete.
Which substance if any showed no change when heated?
Water showed no change when heated at its boiling point. The temperature remains constant during the phase change from liquid to gas until all of the water has evaporated.
What must be changed temperature or heat energy during condensation?
During condensation, heat energy is removed from a gas to change it into a liquid. Temperature remains constant during this phase change as the heat energy is used to break the intermolecular bonds and overcome the forces holding the gas molecules together.
Does a substances temperature change when it is changing state?
No. During a phase change, a substance will remain at a constant temperature until the change is complete. In the case of melting ice, the heat initially goes into separating water molecules from the ice lattice, which is melting. During that time, the heat goes into continued melting of the ice and the temperature remains constant. Once all of the ice is melted, adding additional heat will increase the temperature of the now liquid water.
Why does temperature stop changing while a liquid freezes?
During freezing, the energy from the liquid is used to break the intermolecular bonds and convert the liquid into a solid state. This process requires energy, which is taken from the surrounding environment causing the temperature to stabilize until all the liquid has solidified. The temperature remains constant until the phase change from liquid to solid is complete.
What is the temperature at which a liquid and gaseous phases are in equilibrium?
The temperature at which a liquid and gas are in equilibrium is called the boiling point. At this temperature, the vapor pressure of the liquid equals the atmospheric pressure, allowing the liquid to change into gas and vice versa at a constant rate.
