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How does a substance's boiling point or melting point determine its state at room temperature?
Wiki User
∙ 11y ago
If its still a solid at room temperature then to melt it would have to be at a higher temperature than 20 degrees. If its still a solid at room temperature then to melt it would have to be at a higher temperature than 20 degrees.
Wiki User
∙ 15y ago
Wiki User
∙ 11y agoRoom temperature of a substance is 25 degree Celsius, so say for instance:
Substance melting point boiling point State (rtp)
A (solid state) 83 degree (liquid state) 342 degree (gaseous) Solid
So substance A is solid at room temperature, we come to know this that as 25 degree or the room temperature does not lie b/w the mp and the bp so it is not a liquid state, and it does not come after the boiling point either so it's not a gas at room temperature, thus it's a solid.
Hope it helped! :)
Wiki User
∙ 8y agoTo know what state a substance will be in at room temperature, you need to know its melting point and its boiling point. If room temperature is lower than the melting point, it will be a solid. If room temp. is between the melting point and the boiling point, it will be a liquid. If room temp. is higher than the boiling point, it will be a gas.
The boiling point is always higher than the melting point, although they may be very close together.
So, for water, the melting point is 32 degrees Fahrenheit (0 degrees Celsius), and the boiling point is 212 degrees Fahrenheit (100 degrees Celsius). Room temperature is around 70 degrees F (21 degrees C) which is between the melting and boiling points, so water is a liquid at room temperature.
Wiki User
∙ 14y agoNo, several are liquids as water, hexane, ethyl alcohol and several are gases as carbon dioxide, oxygen, nitrogen
Wiki User
∙ 14y agoThe melting point is below room temperature (usually taken to be about 20°C)
Wiki User
∙ 13y agono
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How can you use boiling points and melting points to determine a solid liquid or gas that an element would be in at a certain temperature?
If the temperature is below the melting point then the element is a solid.If the temperature is above the melting point but below the boiling point, then the element is a liquid.If the temperature is above the boiling point, then the element is a gas.
Why can the boiling point and the melting point be used to help identify a substance?
The boiling and melting points are almost unique to individual substances. If it should happen that two possible substances have the same melting point, they can still be identified by the method of mixed melting points. If substances A and B have the same melting point and you mix them, the mixture will melt belowthe tabulated temperature. Thus if you mix your unknown with a sample of what you think it is, if you are right it will still melt sharply at the expected temperature, but if you are wrong it will melt gradually and at a lower temperature.
What are the melting and boiling points of different substances?
At 1atm, the melting point of H2O(water) is 0 degrees celcius and the boiling point is 100 degrees celcius. Carbon dioxide's boiling point is at -25 degrees and so its meting point. Since it crystallises and sublimates, it has no liquid form. The boiling- and melting points of elements/compounds depend on the amount of pressure exerted on the element/compound. Generally, the higher the pressure, the higher the boiling and melting points. All except for water, gallium and bismuth. These substances' melting point decreases as pressure increases.
Which is true of a melting point and a boiling point?
Melting point: at this temperature a solid become a liquid.Boiling point: at this temperature a liquid become a gas.
Is boiling point is always same as the melting point?
NO!!! Boiling point is the temperature when a liquid changes to a gas. Melting point is the temperature when a solid changes to a liquid. Remember For rising temperatures It melts then boils For falling temperatures It condenses then freezes. Melting/Freezing point is the same temperature for change of state solid/liquid Boiling/Condensing point is the same temperature for change of state liquid/gas
How can you use boiling points and melting points to determine a solid liquid or gas that an element would be in at a certain temperature?
If the temperature is below the melting point then the element is a solid.If the temperature is above the melting point but below the boiling point, then the element is a liquid.If the temperature is above the boiling point, then the element is a gas.
How can you determine if a substances is a solid at room temperature?
Check the melting point of the substance. If the melting point is below room temperature, then the substance is liquid and if the melting point is above room temperature then it is solid.
How does a substances melting point determine its state at room temperature?
If the melting point is under 20 oC the substance is a liquid.
Why can the boiling point and the melting point be used to help identify a substance?
The boiling and melting points are almost unique to individual substances. If it should happen that two possible substances have the same melting point, they can still be identified by the method of mixed melting points. If substances A and B have the same melting point and you mix them, the mixture will melt belowthe tabulated temperature. Thus if you mix your unknown with a sample of what you think it is, if you are right it will still melt sharply at the expected temperature, but if you are wrong it will melt gradually and at a lower temperature.
How can iodine have a melting point?
All substances have melting points and boiling points. A melting point is merely the temperarture at which it changes from a solid to liquid and vice versa. The boiling point of a substance would be the temperature at which it changes from liquid to gas and vice versa.
What are 5 liquids that do not have water?
-- pure alcohol at room temperature -- mercury at room temperature -- oxygen below its boiling temperature -- iron above its melting temperature -- nitrogen below its boiling temperature -- salt above its melting temperature -- gold above its melting temperature -- any other element or compound that is not H2O, above its melting temperature and below its boiling temperature
Do pure substances have a fixed boiling and melting point?
yes they have
What is melting points and the boiling points?
Melting point: the temperature at which a solid become a liquid. Boiling point: the temperature at which a liquid become a gas.
What is the boiling melting and freezing point?
A boiling point is a point on the temperature scale at which a substance begins to boil. A melting point is a point on the temperature scale at which a substance freezes. Melting and boiling points are unique to different types of elements.
How is the melting point of asolid and boiling point of a liquidaffected when impurities are added to the substances?
Adding impurities lowers the melting point and raises the boiling point.
What do boiling point and melting point have to do with the phase of matter of an element at room temperature?
The state of matter of a substance at room temperature depends on whether the melting and boiling points are above or below room temperature. At room temperature:A substance is solid if both the melting and boiling points are above room temperature.A substance is liquid if the melting point is below room temperature but the boiling point is above room temperature.A substance is a gas if both the melting point and boiling point are below room temperature.
Are the boiling points higher temperature than the melting points?
yes, for the same molecule. However, some substances don't have a liquid phase and so the melting point is exactly the same as the boiling point at normal pressures (sublimation is the phase change from solid -> gas)
