Your SlideShare is downloading. ×
  • Like
Energy Transfer In Reactions
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Now you can save presentations on your phone or tablet

Available for both IPhone and Android

Text the download link to your phone

Standard text messaging rates apply

Energy Transfer In Reactions

  • 2,935 views
Published

 

Published in Technology , Business
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
  • higher tier (GCSE)
    Are you sure you want to
    Your message goes here
    Be the first to like this
No Downloads

Views

Total Views
2,935
On SlideShare
0
From Embeds
0
Number of Embeds
1

Actions

Shares
Downloads
17
Comments
1
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. Energy transfer in reactions
  • 2. exothermic
    • A reaction that gives energy out, usually in the form of heat. Usually shown by a rise in temperature
    • E.g. burning fuels, neutralisation, adding water to anhydrous copper sulphate
  • 3. endothermic
    • A reaction that takes in energy from the surroundings. Usually shown by a fall in temperature
    • E.g photosynthesis, ammonium nitrate and water, decomposition of calcium carbonate or malachite (copper carbonate)
  • 4. Rearrangement of atoms (HT)
    • In a reaction, reactants are turned into products
    • In order to do this, the atoms of the reactants must be pulled apart by breaking the bonds between them.
    • Bonds between the atoms of the new products must then be made
  • 5. (HT) reactants atoms products Carbon And oxygen Carbon dioxide Bonds made Bonds broken
  • 6. Breaking and making (HT)
    • Energy is needed to break bonds
    • And is released when bonds are made
    • Breaking bonds is endothermic
    • Making bonds is exothermic
  • 7. Energy changes (HT)
    • In an exothermic reaction, more energy is released by making bonds in the products than by breaking bonds in the reactants
    • In an endothermic reaction, more energy is needed to break bonds in the reactants than is released by making bonds in the products