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What change of state occurs when a substance reaches it's melting point. What occurs when it reaches it's boiling point?
Wiki User
∙ 11y ago
When a substance reaches its melting point it changes from solid to liquid.
When a substance reaches its boiling point it changes from liquid to gas.
Wiki User
∙ 11y ago
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Is the melting point of a substance considered a chemical property?
It just means that one liquid can be distinguished from another by its boiling point because it is a characteristic or property of that particular liquid.
Why does the temperature of a substance remain constant during it's melting point on boiling point?
Because of phase transition ie from solid to liquid during melting and from liquid to vapour during boiling. So just to change over from one phase to the other heat is totally utilized and hence no chance to have a rise in temperature. So temperature remains constant.
Is a boiling point chemical property of a substance?
Boiling is a physical change not a chemical property change. Changes of a substances state are physical changes. In a chemical change, a new compound or substance is the result. In a physical change no new substance is formed. Example: Water - whether it's a solid (ice) liquid (water) or a gas it's the same substance. When the water boils it changes to steam(gas) which is still water in the air, and when we cool down the gas (condensation) it changes back to water.
Is liquid ammonia boiling a chemical or physical change?
Physical change.. think of it as it changing state not the substance
Why the temperature does not rise during the process of melting and boiling though the heat energy is constantly supplied?
The energy must be applied to the phase change before it can heat the substance
If a substance is not at its melting or boiling point as the heat content of a sample of matter increases what happens?
As the heat content increases, the temperature of the substance will rise. However, if the substance is not at its melting or boiling point, it will not undergo a phase change. Instead, its temperature will continue to increase until it reaches its melting or boiling point, at which point a phase change will occur.
A substance change from a solid to a liquid at its?
A substance change from a solid to a liquid at its boiling point. This is when it reaches a certain temperature.
How does the melting and boiling point of a substance change?
it changes depending upon the temperature
Do the melting point and boiling point of a substance ever change?
These values depends (specially the boiling point) on the pressure.
What point does it become a liquid?
The boiling point of a substance is the point at which that substance will change between being a gas and a liquid. For example, the boiling point of water is 100oC, so water vapour will change to water at this temperature. The boiling point of Methane is -161oC, so any temperature above this, Methane will be in gas form.
How do you identify the change of state a substance is undergoing?
through it's boiling, melting, and freezing point.
When you change the amount of a substance the time it takes to reach the boiling point then what happens?
The lower the amount of substance, the faster it reaches the boiling point. The more the amount of substance, the longer it takes to reach the boiling point. Hope that this is what you wanted to know! :)
What are melting and boiling point?
The melting point of a substance is the (thermal) point at which a solid substance gains enough thermal energy to become a liquid.The boiling point of a substance is the (thermal) point at which a liquid substance gains enough thermal energy to become a gas.Boiling point of water: 100 degrees C/ 212 degrees FMelting point of water: 0 degrees C/ 32 degrees FMelting points and boiling points are the temperature at which substances change state.Melting point - solid to liquidBoiling point - liquid to gasThese temperatures will vary depending on the properties of the substance.
Two factors that are responsible for a phase change?
Change in pressure and change in temperature.
Do the properties of a substance change when mixed?
Yes,mixing with other compounds can change the properties of a substance. The melting point, boiling point changes. Chemical properties are also can be changed.
How does a solid change to a liquid in science?
Solid changes to liquid when a substance reaches it's melting point. For example, water's melting point is 0 degree celcius.
Is the boiling point of a substance a physicsl property?
No, the boiling point is a physical property because the compound or substance is not changing chemically (only physically from a liquid to a gas). The boiling point is considered the temperature at which the vapor pressure of the liquid equals the atmospheric pressure surrounding the liquid. All of these are physical properties, making the boiling point a physical property too.
