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Would it be more important to store octane or pentane in a tightly sealed bottle at a low temperature why?
Wiki User
∙ 12y ago
- Alkanes are colourless
methane to butane are colourless gases
(propane and butane are easily condensed under pressure & are commonly sold as liquids)
alkanes containing 5 carbons up to about 19 are colourless liquids
(petrol & kerosene are mixtures of liquid alkanes, dye is added to the fluids for safety reasons)
alkanes with more than about 20 carbon atoms are colourless, waxy solids
(paraffin wax is a mixture of solid alkanes)
- Alkanes are less dense than water (alkanes will float on top of water)
density increases with increasing molecular mass
- Simple alkanes have low melting and boiling points.
Alkanes are non-polar so only weak intermolecular forces act between the alkane molecules
(Van der Waal's Forces/London Forces/Dispersion Forces/Weak Intermolecular Forces)
Melting and Boiling Points increase as the molecular mass increases
- Alkanes are insoluble in polar solvents like water
- Alkanes are relatively unreactive
(they will combust: commonly used as fuels since large amounts of energy are released, the longer the chain, the more bonds are broken, the greater the energy released)
(will undergo halogenation by substitution reaction in the presence of ultra-violet light)
- Alkanes with *flashpoints below room temperature (the components of petrol for example) should be stored in strong metal containers with narrow mouths & tightly sealed lids to prevent the vapour from escaping & to prevent a naked flame or spark from igniting the vapour/air mixture.
Wiki User
∙ 12y ago
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If a bottle is tightly sealed with heat what would happen?
it will bust
Why would a tightly closed empty water bottle crush itself?
This answer presumes that "empty" means the bottle has no water in it, but does have air in it.In this case the bottle would collapse (or partly collapse) if the temperature inside the bottle dropped to a lower temperature causing the air inside to shrink, or if the bottle was taken to a place of higher air pressure (such as taking the bottle from a mountain peak to the base of the mountain.The bottle would also collapse at some point of evacuation if "empty" means the bottle was evacuated of water and air. The point of collapse, in this case, would depend on the physical construction of the bottle - ie, whether it was made of steel, plastic or glass
Why can you observe water droplets on the surface of a chilled bottle?
You can observe water droplets on the surface of a chilled bottle because the temperature of the atmosphere is a different temperature to that of the temperature in the chilled bottle.
Why does a bottle of spring water get crushed when you put the lid on an empty bottle tightly?
The plastic bottle (which is a blight on our planet and should not be bought and tossed away lightly) is made of very thin plastic. As thinly as possible to make it inexpensive to manufacture (so that it can be bought and tossed away thoughtlessly to fill landfills). A small drop in temperature, after the lid is on, will mean that the pressure in the bottle is less than the outside pressure so the bottle implodes. Try drinking the contents of a bottle of water, put the lid on and put it in the freezer. Observe what happens.
Why are bottles of chemicals kept tightly closed except when a quantity of chemical is being removed?
They are kept tightly closed so there is less chance of contamination and if the bottle gets knocked over, its contents will not spill.
Why happens when you spin a bottle of water?
Nothing important at room temperature and if the bottle is sealed.
How do you store Crazy Glue?
In a tightly capped bottle
If a bottle is tightly sealed with heat what would happen?
it will bust
A bottle is filled up to its brim with a liquid The bottle is then tightly corked and placed in a freezer As the liquid freezes the bottle cracks The liquid could be?
water
How should fine cognac be stored in the home?
Bottle standing up, in a cool place without much variation of temperature.
Why would a tightly closed empty water bottle crush itself?
This answer presumes that "empty" means the bottle has no water in it, but does have air in it.In this case the bottle would collapse (or partly collapse) if the temperature inside the bottle dropped to a lower temperature causing the air inside to shrink, or if the bottle was taken to a place of higher air pressure (such as taking the bottle from a mountain peak to the base of the mountain.The bottle would also collapse at some point of evacuation if "empty" means the bottle was evacuated of water and air. The point of collapse, in this case, would depend on the physical construction of the bottle - ie, whether it was made of steel, plastic or glass
Why can you observe water droplets on the surface of a chilled bottle?
You can observe water droplets on the surface of a chilled bottle because the temperature of the atmosphere is a different temperature to that of the temperature in the chilled bottle.
What might happen to a glass bottle if it is filled with water and capped tightly and put in the freezer?
it will buse
Why does a glass bottle completely filled with water and tightly capped burst when placed in freezer?
esuyt
What is temperature of plastic bottles?
this temperature can be changes by whatever you do to the bottle
Why does a bottle of spring water get crushed when you put the lid on an empty bottle tightly?
The plastic bottle (which is a blight on our planet and should not be bought and tossed away lightly) is made of very thin plastic. As thinly as possible to make it inexpensive to manufacture (so that it can be bought and tossed away thoughtlessly to fill landfills). A small drop in temperature, after the lid is on, will mean that the pressure in the bottle is less than the outside pressure so the bottle implodes. Try drinking the contents of a bottle of water, put the lid on and put it in the freezer. Observe what happens.
Why does running bottle tops under a hot tap help to under it?
Heat causes materials to expand. Hopefully, the bottle top will expand more rapidly than the bottle and therefore the top will not adhere so tightly to the bottle and it can more easily be unscrewed.
