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Does anyone know how many cc's there are to an ml?
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Lovely\ said:
, ThankyouAlthough the high class and super exact physicists might quibble about the finer points, for most mortals
millilitres/ml = cubic centimetres/cc = centimetres cubed/cm3 (sorry but I can't do the correct font thingy on my keyboard. You'll recognise it when you see it)
Also for water ml = cc = cm3 = grams/g. Thus 1000 ml water = 1 litre of water = 1kg water. Very important to realise that if you're hiking and carrying everything on your back
That's all part of the fun & interchangeability of the metric system
Times change, and there are fashions in science like everything else, so cc is considered a bit old fashioned now, and has mostly been replaced by ml or cm3; but cc s are most known as a measurement of engine capacity
Also with the metric system 1000 ml/cc/cm3 = one litre/1l
So my old Ford had an engine capacity that was strictly speaking 1297 cc, but was generally referred to as 1300cc or 1.3l
millilitres/ml = cubic centimetres/cc = centimetres cubed/cm3 (sorry but I can't do the correct font thingy on my keyboard. You'll recognise it when you see it)
Also for water ml = cc = cm3 = grams/g. Thus 1000 ml water = 1 litre of water = 1kg water. Very important to realise that if you're hiking and carrying everything on your back
That's all part of the fun & interchangeability of the metric system
Times change, and there are fashions in science like everything else, so cc is considered a bit old fashioned now, and has mostly been replaced by ml or cm3; but cc s are most known as a measurement of engine capacity
Also with the metric system 1000 ml/cc/cm3 = one litre/1l
So my old Ford had an engine capacity that was strictly speaking 1297 cc, but was generally referred to as 1300cc or 1.3l
G
simple answer 1ml is the same as 1cc. Plenty of sources to back this up online. Source I got this from was my own high school education over 30 years ago.
So where does the specific gravity of a liquid and the relative density come in?\ said:
Specific gravity is the weight of a liquid compared to an equal volume of water
As we have seen, 1 ml water weighs 1 gram. But vegetable oil is lighter than water and 1 ml weighs about 0.9g. (that's why oil floats on water)
Other liquids will have other, different weights.
As water has a weight of 1, you are comparing any other liquids to water. For the same, or identical, or specific volume, vegetable oil will be 0.9 X the weight or gravity of water. So the comparison to water is called the specific gravity
Density is basically a posher name for weight, and since you are comparing the density of a liquid to that of water, or in other words relating it to water, the weight of any liquid compared to water is called the relative density
In other words specific gravity = relative density
As I've said, fashions change, so relative density is a more modern and preferred term to specific gravity
The gist of this is that relative density is the same, but a more modern expression than specific gravity. They both compare the weight of a liquid to that of water
Alright, maybe that's a bit rambling. I'm sure if you search Google you'll find a better explanation
As we have seen, 1 ml water weighs 1 gram. But vegetable oil is lighter than water and 1 ml weighs about 0.9g. (that's why oil floats on water)
Other liquids will have other, different weights.
As water has a weight of 1, you are comparing any other liquids to water. For the same, or identical, or specific volume, vegetable oil will be 0.9 X the weight or gravity of water. So the comparison to water is called the specific gravity
Density is basically a posher name for weight, and since you are comparing the density of a liquid to that of water, or in other words relating it to water, the weight of any liquid compared to water is called the relative density
In other words specific gravity = relative density
As I've said, fashions change, so relative density is a more modern and preferred term to specific gravity
The gist of this is that relative density is the same, but a more modern expression than specific gravity. They both compare the weight of a liquid to that of water
Alright, maybe that's a bit rambling. I'm sure if you search Google you'll find a better explanation
If I remember correctly from my beer making days Specific gravity and relative density are the same thing When you add sugar to water it becomes more dense and so a hydrometer will float high in the water add some yeast and warm it up and the yeast will convert the sugar into alchohol making the water less dense and therefore make the hydrometer float lower in the water
These are important things to consider when refuelling an aircraft, I also recall that the daily barometric pressure, or something like that, has an effect on the volume of fuel.
Temperature and pressure will both affect the volume of a liquid, this is why is all data books things like density etc. are quoted at Standard Temperature and Pressure.
If you look on petrol pumps there is usually a disclaimer that the volume delivered may vary depending on atmospheric conditions and temperature.
If you look on petrol pumps there is usually a disclaimer that the volume delivered may vary depending on atmospheric conditions and temperature.
Right, so I should only fill my car up on really cold days - got it.\ said:
Right then, that narrows my options a bit, but OK.\ said:
Ah, now you are talking about liquid oxygen - totally different mate.\ said:Mark only wanted to know "cc's there are to an ml" He is building a plastic kit ........... and now we know what to look out for when we are fuelling a "Soyuz Rocket"
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