What substance that has a boiling point below water?
ethanol, which boiling point is 78 degree Celsius
For a given substance, yes, it's gaseous form is hotter than its liquid form. However, you cannot say that a gas, of any substance, is generally hotter than a liquid of some other substance. Different substances have different boiling points. The boiling point for Nitrogen, for example, is well below the boiling point of water, and even below the freezing point of water. So you cannot say that Nitrogen gas is hotter than liquid water.
A boiling point isn't a substance at all. The boiling point of a substance is the temperature at which it changes from liquid to gas. For example, the boiling point of water at standard pressure is 100Â°C or 212Â°F. The boiling point of helium is -269Â°C or -452Â°F or 4.2K. The boiling point of iron is 2,862Â°C or 5,182Â°F.
No, carbon dioxide has a much lower boiling point than water. The boiling point is the temperature at which a substance changes phases from a solid to a liquid. Carbon dioxide is a gas at room temperature, while water is found primarily in liquid form at room temperature. Therefore, at 78 degrees F, carbon dioxide is above its boiling point while water is below its boiling point.
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.
If the food coloring is water-based, it would be slightly above or below the boiling point of water (100 degrees Celsius) depending on the effect of the coloring substance on the water's boiling properties. Some colorings might be oil based, in which case their boiling point would be closer to 150-200 degrees Celsius.
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 F Melting point of water: 0 degrees C/ 32 degrees F Melting points and boiling points are the temperature at…
The boiling point of water will be greatest at that point on Earth that is the closest to sea level. Boiling point of water depends on the atmospheric pressure. The boiling point of water varies depending on the weather. At low atmospheric temperatures due to weather or due to being up a mountain, the water will boil below its "normal" boiling point of 100 oC
At Boiling Point all the material evaporates leaving no residue which means it is pure. But if it leaves some residue after evaporating at boiling point then it is not pure. For example : If you take an example of pure water & Saline Water then pure water will evaporate at its boiling point leaving nothing after it. But Saline water evaporates leaves salt behind it.
That will depend on the temperature scale (eg Kelvin, Fahrenheit, Celsius etc.) you are wishing to use to measure it and the substance who's boiling point you are trying to ascertain (eg boiling point of Oxygen or the boiling point of Iron or the boiling point of Water etc.). Water's boiling point is at 100° C, 373.15° K, and 212° F.