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

21a Thermochemistry

Thermochemistry Questions

QuestionAnswer
Define Organic Chemistry The study of compounds of carbon
What is a hydrocarbon? A compound containing hydrogen and carbon only
What is a fossil fuel? A fuel composed from the remains of plants and animals that lived millions of years ago
Define the term saturated compound A compound in which only singe bonds are present
Define the term homologous series A series of compounds of similar chemical properties. Which show graduations in physical properties. Each has a general formula. Each has a similar method of preparation. Each member differs from the previous by a methylene (CH4) molecule
What is a structural isomer? Compounds with the same molecular formula but different structural formulae
Give two tests for unsaturation Bromine water & Potassium permanganate
Name an Alkyne Ethyne
Define the term aliphatic compound An organic compound with open chains of carbon atoms and close chain compounds that resemble them in chemical properties
Define the term aromatic compound Compounds with a benzene ring structure in their molecules
How does fractional distillation work? Crude oil enters a furnace as feed-stock and the chemicals inside are separated out according to boiling point at the temperature decreases up the furnace
What is the top fraction, refinery gas, used for? LPG, for gas cookers
What is petrol used for? Cars
What is Naptha used for? Chemicals for the petrochemical industry e.g. feed-stock for petrol
What is kerosene used for? Fueling aircraft ¢ral heating
What is diesel oil used for? Trains, buses, trucks and cars
What is lubricating oil used for? Waxes and polishes
What is fuel oil used for? Fuel for ships and industry
What is Bitumen/Residue used for? Roads and roofing
Define auto ignition The premature ignition of a petrol air mixture
Define octane number The tendency of a fuel to resist auto ignition
Name 3 structural factors affecting octane number Chain length, degree of branching, straight chain or cyclic structure
Name a fuel with an octane rating of zero Heptane
Name a chemical with an octane rating of 100 2,2,4-trimethylpentane
Name four processes used to improve octane rating Adding oxygenates. De-hydrocyclisation. Isomerisation. Catalytic cracking.
What is MTBE? Methyl tertiary-butyl ether
Oxygenate any fuel containing oxygen in its molecules.
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