answersLogoWhite

0


Best Answer

The octane rating of a substance is a measure of its resistance to autocombustion when compressed. By definition, isooctane has an octane rating of 100, and n-heptane a rating of 0, and all others are in comparison to these two.

There are various ways to measure the octane rating of a substance. On way is determined by running the fuel through a specific test engine with a variable compression ratio under controlled conditions, and comparing these results with those for mixtures of isooctane and n-heptane.

For other more information, and for the source of this information, see the Wikipedia link under the Web Links to the left of this answer.

User Avatar

Wiki User

16y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Is it possible to determine an octane rating from a vapour?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Natural Sciences

What is relative humidity a ratio of?

Relative humidity is the ratio of the partial pressure of water vapour to the saturation vapour pressure of water at the same temperature. Relative humidity depends on temperature and the pressure. Very roughly speaking, it is a ratio of the amount of water vapour in the air compared to the total amount of water vapour that it possible for that air to contain.


Which state is a vapour?

The state of vapour is gaseous.


what is the molecular mass of water vapour?

The molecular mass of water vapour is 18.01528


What is the different between vapour and steam?

If you look carefully at a boiling kettle, water vapour is the white vapour you can see. Steam is actually the invisible short section between the spout of the kettle and the start of the water vapour.


What is the difference between water vapour and steam?

the difference is that water vapour is just one particle that joins together with more and more to form steam

Related questions

Is it possible to have water vapour at -10celsius why?

yes


Is it possible to have water vapour at -10degrees?

Yes at low enough pressures


How do you calculate vapour pressure from an EOS?

Use the Equation of State (EOS) in combination with the Antoine's Equation to determine vapor pressure.


What is the ratio of RH?

Relative humidity (RH) is the ratio of the partial pressure of water vapour to the saturation vapour pressure of water at the same temperature. Relative humidity depends on temperature and the pressure. Very roughly speaking, it is a ratio of the amount of water vapour in the air compared to the total amount of water vapour that it possible for that air to contain.


What is relative humidity a ratio of?

Relative humidity is the ratio of the partial pressure of water vapour to the saturation vapour pressure of water at the same temperature. Relative humidity depends on temperature and the pressure. Very roughly speaking, it is a ratio of the amount of water vapour in the air compared to the total amount of water vapour that it possible for that air to contain.


Which state is a vapour?

The state of vapour is gaseous.


Can you smell the vapour in the room?

No. Vapour does not smell.


Why does your petrol fiat stilo have white smoke coming out of the exhaust?

White smoke is water vapour. Possible head gasket problems


Will mercury vapour work in a sodium vapour fixture?

no


Is Mercury vapour compressable?

Any vapour is compressible.


Is vapour invisible?

Whi many are, many are not (iodine vapour is quite easily seen, for example, where water vapour is not).


How is vapour used in a sentence?

The water vapour condensed on the windows. The vapour rising off the acid made me choke.