How Heavy Is A Liter Of Engine Oil?

[Mayuri Krab]

Actually my bad Mercury is the most dense at 13500g/L.

Also isn't Mercury (Hg) the only metal who is in liquid form at room temperature?

(I think I remembered something )

[PM-R33]

Yeah, becomes a solid at like -40 degrees or thereabouts. Not 100% sure if it is the only metal thats a solid at room temp, but it's the only one i can think of.

Here's something that i thought of that a lot of people might not have seen while on the topic, i got shown it at uni. Its's a non-newtonian fluid that has different values of viscosity depending on what type of load is appled to it (shear stress and shear strain). In lamans terms it appears to be a liquid however when hit with a force on an area behaves as a solid. Watch

Once u've watched that and understand how it works watch this one, pretty freaky.

Edited November 6, 2009 by PM-R33

[ARTZ]

Well I thought this guy would get a bunch of smart ass answers but I just learnt alot more about the scientific properties of water

Dont worry i didnt forget about ya....

Its half as heavy as 2 litres of oil...and twice as heavy as half a litre

[Birds]

Yeah, becomes a solid at like -40 degrees or thereabouts. Not 100% sure if it is the only metal thats a solid at room temp, but it's the only one i can think of.

Here's something that i thought of that a lot of people might not have seen while on the topic, i got shown it at uni. Its's a non-newtonian fluid that has different values of viscosity depending on what type of load is appled to it (shear stress and shear strain). In lamans terms it appears to be a liquid however when hit with a force on an area behaves as a solid. Watch

Once u've watched that and understand how it works watch this one, pretty freaky.

That's some awesome shit! Wasn't there something about body armour being made from a liquid that acts like a solid as soon as a bullet hits it?

You could also make the bullets from it I guess...would turn back to liquid after penetrating the body hehe.

[PM-R33]

Sure is http://science.howstuffworks.com/liquid-body-armor.htm pretty sure i saw a discovery channel doco on how it works, amazing shit.

[Duncan]

Water has a density of 998g/L. ....

wtf? this has been bugging me for 2 weeks. wasn't the metric system based on the properties of water, and in this case that 1kg = 1lt? do you mean sea water, tap water or some other wierd water? or actual pure water and they just f**ked up?

[SilverECR33]

maybe they f*kt up?

Edited November 21, 2009 by SilverECR33

[PM-R33]

wtf? this has been bugging me for 2 weeks. wasn't the metric system based on the properties of water, and in this case that 1kg = 1lt? do you mean sea water, tap water or some other wierd water? or actual pure water and they just f**ked up?

Ok this is a little bit tricky, i dont remember all the information regarding the original density defined by the metric system and why it was classed as such, but this is what i remember.

Since water is such a special substance with it not following the same rules as other liquids it's density changes so much due to temperature. I beleive water never actually reaches 1000g/L. At room temparture (around 20-25 degrees) water's density is close to 998g/L. This is what is always used in physics calculations and what i have always used throughout uni. At around 4 degrees water is closest to 1000g/L at 999.9g/L, however since it is rare to have water at 4 degrees for certain calculations, it is always classed at room temperature. Obviously for calculations that don't need to be exact, people use 1000g/L. I beleive nowadays with the metric system water is classed as 1000g/L @ 4degrees celsius.

Like i said there is a lot to water since it is so special and im sure there are a lot of other people that know more about this than me.

The metric system is very interesting with how every single unit of measurement is based on something. The one that i find the most strange is the gram. It's the measurement of 1/1000 of a specific object which is kept in a sealed vault in France lol. I beleive it is the one of the only ones that isn't currently related to maths or the earth, however they are trying to change that so it is (like 1m was originally defined as 1/10mil of the distance between the north pole and the equator through Paris haha. They later changed that though).

Edited November 22, 2009 by PM-R33

[scathing]

I thought that water hit 1000g/L at 4°C, at an unknown pressure.

When I was still doing high school chemistry, all published attributes for any chemical reaction are taken at "Standard Temperature and Pressure", which back then was 25°C and 1 atmosphere.

[PM-R33]

Oh no doubt at a different pressure you could probably make water be 1000g/L. However at 1 atmosphere im pretty positive it doesn't reach it. Falls short at 999.97g/L or something. Come on, where are the chemical engineers on this forum to help us out

Edited November 23, 2009 by PM-R33

[Shant]

sorry this is too much information! LOL fantastic stuff though lads, keep up the great posts, learning so much !