Best answer: Can water boil at different temperatures?

The boiling point of water, or any liquid, varies according to the surrounding atmospheric pressure. … With that much less pressure, you don’t need to apply as much heat to push vapor pressure beyond the surrounding atmospheric pressure – in other words, water boils at a lower temperature.

Why does boiling water stay the same temperature?

When boiling occurs, the more energetic molecules change to a gas, spread out, and form bubbles. These rise to the surface and enter the atmosphere. … In addition, gas molecules leaving the liquid remove thermal energy from the liquid. Therefore the temperature of the liquid remains constant during boiling.

Is it possible to change the boiling point of water?

Boiling points can be changed in several ways. The addition of solutes or other substances usually changes the boiling point. Additionally, changing the pressure on a liquid changes its boiling point. … Even a large amount dissolved in the water will usually make only small changes in the boiling point.

Can you boil water hotter than 212 degrees?

Superheated water is liquid water under pressure at temperatures between the usual boiling point, 100 °C (212 °F) and the critical temperature, 374 °C (705 °F). It is also known as “subcritical water” or “pressurized hot water.”

Why does the temperature of ethanol not rise when boiled?

As a liquid is heated, its vapor pressure increases until the vapor pressure equals the pressure of the gas above it. … In order to form vapor, the molecules of the liquid must overcome the forces of attraction between them. The temperature of a boiling liquid remains constant, even when more heat is added.

When water boils its temperature increases or decreases?

To Find: Conversion of water into steam is a phase change and this occurs due to weakening of inter-molecular forces between water molecules. So, during phase change there is no increase or decrease in temperature and the heat supplies is use as latent heat of vaporization.

How can you boil water without electricity or gas?

A woodstove or fireplace can be a lifesaver during a power outage, and not only as a general source of heat. You can also boil water as you would over a campfire, with the pot placed atop a woodstove, or via the built-in water reservoirs some models include.

Does salt help water boil faster?

“The temperature of saltwater will get hotter faster than that of pure water,” Giddings said. “But it still has a higher boiling point, and the mass is still greater when you add salt to the same volume of water, so this doesn’t mean that the saltwater boils faster.”

What increases boiling point?

Compounds that can hydrogen bond will have higher boiling points than compounds that can only interact through London dispersion forces. An additional consideration for boiling points involves the vapor pressure and volatility of the compound. Typically, the more volatile a compound is, the lower its boiling point.

Can boiling water go over 100 degrees?

Liquid water generally doesn’t go higher than 100 degrees Celsius, as that is its boiling point (under standard conditions). At this point it undergoes a phase change into steam, which is still water, but in the gas phase. Steam can (and does) get hotter than 100 degrees Celsius, and can be very dangerous as a result.

Is boiling water twice bad?

If you have perfectly pure, distilled and deionized water, nothing will happen if you reboil it. However, ordinary water contains dissolved gases and minerals. … However, if you boil the water too long or reboil it, you risk concentrating certain undesirable chemicals that may be in your water.

How much does boiling water raise temperature?

Going up 10 degrees takes more boiling water as the starting temperature increases. For example, starting at absolute zero (not possible, but just for example and not including ice). It would take 75.5 gallons of boiling water to increase the temperature 10 degrees.

What liquid has the highest boiling point?

Explanation: Acetone 56.0 ∘C . Ethanol 78.5 ∘C .

Is boiling ethanol dangerous?

If you boil etoh, ethyl alcohol, or ethanol, it generates very highly flammable vapors. So, keeping in mind that you will be creating a dangerous explosive atmosphere.

Why is ethanol dangerous?

Even though ethanol is very commonly used, it is a dangerous chemical. As previously mentioned, it is highly flammable; as such, it has exact flash points which are important to know when using it. While ethanol is consumed when drinking alcoholic beverages, consuming ethanol alone can cause coma and death.