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Butane is a gas at atmospheric pressure and room temperature. In the fuel tanks of cigarette lighters, butane welding torches, and most other butane powered heating devices, butane has been compressed to the point that it remains liquid at room temperature. When the trigger of these devices is depressed, a valve opens, allowing butane to escape from the tank, and in doing so, it's pressure drops to atmospheric pressure, and the liquid butane escaping the tank rapidly boils and becomes a gas, which is ignited by an ignition source. Strictly speaking, if the tank contained pure butane, when all the butane has evaporated, all that would be left in the tank is butane gas at atmospheric pressure. If you sprayed liquid butane on your table, and it were completely pure, the liquid would evaporate, leaving nothing behind. In reality, butane fuel is not completely pure, and may contain small amounts of all sorts of contaminants, some of which can be left behind after the butane evaporates. Some of these contaminants like methane, ethane, and propane likely would evaporate away with the butane, but other contaminants, like trace amounts of other petroleum distillates will likely remain after the butane evaporates.

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Can you use butane lighter fluid in Zippos?

Butane will only stay a liquid under pressure. NORMAL lighters keep it in a sealed container so it only evaporates when the trigger is pressed. Zippo lighters are NOT sealed and even if they had a way to inject butane, it would all flow out the top. Zippos require a fuel that is a liquid at room temp and evaporates a little at a time so the sparks will ignite the gas. Zippo does produce a special butane lighter, however.


Why is butane gas a liquid in lighter but a gas in water?

Butane gas is a liquid in lighters because it is under high pressure, which allows it to remain in a liquid state at room temperature. However, when released into water, the pressure decreases and the butane evaporates into a gas due to its low boiling point.


In an activity20 grams of salt are dissolved in 70 grams of water. The water is then heated on a hot plate. When the water evaporates completelyhow much salt will be left?

If the water was pure and had no salt already mixed in it then the same 20 grams of salt would be left, as salt doesn't evaporates on the temperature at which water does evaporates.


How long does butane fuel last?

That depends on the ambient conditions. The rate at which butane evaporates depends on the ambient pressure, the temperature and the amount of ambient convection. If the butane is very cold, it will take an extremely long time to evaporate. If it is hot, it will pretty much flash into vapor as soon as it is exposed to atmospheric pressure. If it is in the bottom of a long tube where the vapor above the liquid quickly becomes entirely composed of butane, it will evaporate more slowly than if it is just dumped out in a puddle on the ground with a fan blowing over it. Since the vapor pressure of butane is around 2 atmospheres at typical room conditions, it will generally be under pressure in whatever container it is stored in. As soon as the container is opened, it will start boiling. Butane lighters have liquid butane in them because the plastic doesn't have too much trouble containing the relatively low pressure required to keep most of the butane liquid. If you drill a hole in the side of one, the butane will start boiling until all but a bit of residual vapor has escaped.


When have you observed that salts are left behind when water evaporates?

I have observed salts being left behind when water evaporates in situations such as saltwater pools, when seawater evaporates to form salt flats, and in kitchen settings when liquid from marinades evaporates, leaving salt residue behind.

Related Questions

Temperature of liquid butane sprayed in air?

The temperature of liquid butane sprayed into the air will rapidly decrease as it expands and evaporates, causing it to cool down. This process is known as evaporative cooling, where the liquid absorbs heat from the surroundings in order to transform into a gas.


Can you use butane lighter fluid in Zippos?

Butane will only stay a liquid under pressure. NORMAL lighters keep it in a sealed container so it only evaporates when the trigger is pressed. Zippo lighters are NOT sealed and even if they had a way to inject butane, it would all flow out the top. Zippos require a fuel that is a liquid at room temp and evaporates a little at a time so the sparks will ignite the gas. Zippo does produce a special butane lighter, however.


Why is butane gas a liquid in lighter but a gas in water?

Butane gas is a liquid in lighters because it is under high pressure, which allows it to remain in a liquid state at room temperature. However, when released into water, the pressure decreases and the butane evaporates into a gas due to its low boiling point.


What happens saltwater evaporates?

The salt is left behind.


What is left when sea water evaporates?

Sodium


What is left when the liquid in NaOH HCO3 evaporates?

Na


Whats enron syndrome?

When you are cooking the books in such a spectacular fashion that the entire company evaporates into a pool of pixie dust.


Which of the following is a way that minerals are formed a. Minerals are left behind when super-heated water within the Earth cools. b. Minerals are left behind when water evaporates. c. Minerals are?

Several minerals are left behind when water evaporates.


After a calcite test the liquid evaporates what is left in the dish?

Salt Crystals


What happens to salts dissolved in water when the water evaporates?

When water evaporates, salts dissolved in the water are left behind and form solid crystals.


What process causes dissolved substances to be left behind to form minerals after water in or ponds evaporates?

Precipitation causes dissolved substances to be left behind to form minerals after water in lakes or ponds evaporates.


In an activity20 grams of salt are dissolved in 70 grams of water. The water is then heated on a hot plate. When the water evaporates completelyhow much salt will be left?

If the water was pure and had no salt already mixed in it then the same 20 grams of salt would be left, as salt doesn't evaporates on the temperature at which water does evaporates.