Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Petrol and Octane No

Fuel terms and definitions

QuestionAnswer
Appearance of crude oil thick black liquid
The separating of substances according to their boiling points Fractional distillation
The 2 main fractions crude oil is broken into? Residual and Volatile fractions
Mercaptans Sulphur containing compounds added to natural gas to aid detection of leaks
What does LPG stand for? Liquefied Petroleum Gas
What is Naphtha used for? Used to make plastics
1 use of Bitumen Used in tarring roads
The early explosion of petrol in the cylinder of an engine Auto-ignition
Octane Rating = 0 Heptane
Octane Rating 100 2,2,4 tri methyl pentane
Octane Number The Octane Number is the measure of a fuels resistance to cause engine knocking
Sound caused in a car by auto-ignition Engine Knocking
3 factors which increase Octane Number? Addition of branches, shorter chain, addition of oxygenates
3 examples of Oxygenates added to fuel Methanol, Ethanol and MTBE
What does MTBE stand for? Methyl tertiary butyl ether
Isomerisation Turning straight chains into their isomers, making them shorter and creating more branches
Catalytic Cracking Breaking long chain hydrocarbons into shorter chains
Reforming Converting straight chain compounds into ring compounds, creating hydrogen as a by-product
Why is Benzene no longer added to petrol? Carcinogen
Why is lead no longer added to petrol? Poisonous to catalytic converters and the environment.
Created by: cbschemistry
Popular Chemistry sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards