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Q: Does a pure substance always boil at a fixed temperature?
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What liquid evaporates at 120 degrees Celsius?

Any substance which is liquid at that temperature. Liquids evaporate at any temperature. If you mean boiling, which happens at a fixed temperature at fixed pressure, then nitric acid fits.


What is the effect of soluble volatile substance on the boiling point of a water solution?

A soluble volatile substance will lower the boiling point of a solution. The volatile substance will boil at a lower temperature than the water component, thus causing the solution to boil at a lower temperature.


If two miscible substance boil at exactly the same temperature are they identical?

yes i can


What temperature does every pure substance boil at?

it boils at about 100 degrees celcious ;) lolz


Why does the temperature remain constant when it boils?

A substance has different phases, but it only boils at a certain temperature. If it is over that temperature it will evaporate or if it is under that temperature it won't boil.


What remains constant when a substance starts to boil?

Temperature! :) doing a crossword puzzle on it right now!


What is boil in science?

Every liquid has a temperature and pressure at which the substance gives off vapor internally. The temperature and pressure at which this occurs is called the boiling point. The term "boil" means what happens at these points.


How would you know whether a chemical is pure or impure?

An inpure chemical boil over a range of temperature. While, a pure solution melt at a fixed temperature.


Is it true that a liter of gasoline will boil at the same temperature as a milliliter of gasoline?

Yes, as boiling point is a property of the substance.


Why does the amount of water affect time it takes to boil?

The basic formula which describes the energy required to raise the temperature of a substance is ΔE=mcΔθ. where: ΔE = Difference in energy m = mass of the substance c = specific heat capacity of the substance Δθ = change in thermodynamic temperature without any calculation, it is clear that if the change in temperature is the same (i.e. from room temperature to boiling point); and the specific heat capacity is the same; the more of the substance that is being boiled; the more energy is required. If the device which is boiling the substance is at a constant power, whether it be a burner or a kettle, the more energy required to boil the substance, the more time it will take to boil so long as the power is held constant.


What temperature does water boil at big bear?

It doesn't matter where you are, water always boils at 100 degrees.


What Celsius temperature does chocolate boil?

The substance we call "chocolate", strangely enough, doesn't boil. The reason is that it is a mixture of solids and fats. The fats will boil if heated to much higher than water boiling temperature and at various levels, which makes it a dangerous experiment. The solids in chocolate, like cocoa and sugar, will just burn - not boil. If you are talking of meltingtemperature, that is around 32 degrees Celcius.