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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 it true or false that characteristic properties of elements do not depend on the amount of material present in a sample of the element?
True. Characteristic properties of elements, such as melting point, boiling point, density, and chemical reactivity, do not depend on the amount of material present in a sample of the element. These properties are unique to each element and remain constant regardless of the quantity of the substance.
When boiling water what particular gas evaporates first oxygen and hydrogen?
When boiling water, the elements do not seperate. The only substance that evaporates is water as 'steam'.
Would a 5555 degree Celsius boiling point turn to a liquid in a negative 50 degree Celsius freezer?
Yes, When I first Asked This Question on 11/15/12 I Just Couldn't Figure It Out But Then I found Out The Answer of "suppose these substances were placed in the freezer set to -50`c. Which substance would become a liquid?" The answer was tungsten!
Is freezing point of a substance is equal the melting point of the same substance?
Yes, the freezing point of a substance is the same as its melting point. This is because both processes involve a change in state from solid to liquid or vice versa, and the temperature at which this occurs is the same for a specific substance under constant pressure.
Describe what a pure material or substance is?
These are substances that contain only one type of atoms/molecules. For example, diamond is a pure substance. Diamonds are made of strictly carbon atoms. Melting points and Boiling points of pure substances always remain constant !
What substance in the table is a liquid at 105 degrees?
To determine which substance in the table is a liquid at 105 degrees, you would need to know the melting and boiling points of the substances listed. A substance that has a melting point below 105 degrees and a boiling point above 105 degrees would remain in liquid form at that temperature. Please provide the specific substances for a more accurate answer.
Do properties remain the same regardless of the amount of the substance?
Intensive properties remain the same with a change in the amount of a substance - for example: temperature and density Extensive properties do not remain the same with a change in the amount of a substance - for example: mass and volume
Is a sharp melting point for a crystalline organic substance always indicates a pure single compound?
In general, a sharp melting point for a crystalline organic substance can suggest a pure single compound. However, impurities or different polymorphs can also affect the sharpness of the melting point. Additional analysis, such as TLC or NMR, may be needed to confirm the purity of the compound.
What is the characteristic property of a substance?
The characteristic property of a substance is a unique physical or chemical property that helps identify and distinguish that substance from others. These properties remain constant regardless of the amount or physical state of the substance. Examples include density, melting point, boiling point, and solubility.
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.
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.
Why does temperature remain constant during melting and boiling?
During melting and boiling, the energy being added to the substance is used to break the intermolecular forces holding the molecules together, rather than increasing the kinetic energy of the molecules. This means that the temperature remains constant because the energy is absorbed as the substance undergoes a phase change.
Explain why the boiling point and the melting point can be used to help identify substances?
100 degrees mate. 100 degrees Celsius is the boiling point for pure water at 1atm or sea level. The boiling point is useful in identifying chemical compounds. Chemical compounds have different boiling points that are specific to it' s chemical composition. If you know what the boiling point or melting point is you can also tell if your compound is pure, as any impurities will change these.
Do characteristic properties change when sample changes?
Characteristic properties of a substance do not change when the sample changes. These properties, such as melting point, boiling point, density, and chemical reactivity, are inherent to the substance itself and remain constant regardless of the size or form of the sample.
Is boiling temperature a characteristic property?
Yes, boiling point is a characteristic property of matter. It is called a characteristic property because no matter how much of a pure substance you have, the boiling point should remain the same. Therefore, it is a characteristic property of pure substances.
Is melting point a intensive or extencive property?
Melting point is an intensive property. Regardless of the amount of a substance present the melting point will remain the same.
