chemistry topic 6, rate and extent of chemical change
- Created by: Whitechoc10001
- Created on: 20-02-20 11:44
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- the rate and extent of chemical change
- factors affecting rate
- temperature
- increased energy
- particles move faster
- more frequent collisions
- more particles with energy greater than the activation energy
- more successful collisions
- particles move faster
- increased energy
- surface area
- more particles the can collide
- more frequent collisions
- more particles the can collide
- pressure
- more particles in a given volume
- more frequent collisions
- more particles in a given volume
- catalyst
- offer a route of lower activation energy
- more particles have more energy than activation energy
- more successful colisions
- more particles have more energy than activation energy
- offer a route of lower activation energy
- temperature
- measuring rate
- colour change
- measure the time for a solution to turn from transparent to opaque
- due to formation of precipitate
- measure the time for a solution to turn from transparent to opaque
- change in mass
- experiment takes place on a balance
- mass change is gas given off
- over time (everty 10s)
- mass change is gas given off
- experiment takes place on a balance
- volume of gas released
- use gas syringe to measure volume of gas.
- over time (every 10s)
- use gas syringe to measure volume of gas.
- colour change
- reversible reactions
- a reaction that can go in both directions
- can reach dynamique equilibrium
- only in a closed system
- both reactions still hapening with no overall effect
- one way exothermic, one way endothermic
- le chatliers principle
- if you change the conditions in a reversible reaction, the system will counteract the change
- temperature
- increase temperature
- equilbrium shifts in endothermic direction
- decrease tempercture
- equilibrium shifts in exothermic direction
- increase temperature
- pressure
- increase pressure
- equilibrium moves in the direction of fewer molecules
- decrease pressure
- equililbrium shifts in direction or more molecules
- increase pressure
- concerntration
- increase conc. of products
- Untitled
- increase conc. of products
- factors affecting rate
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