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7 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Rate of a Chemical reaction depends on |
Collision frequency of reacting particles (high = quick) Energy transferred during a collision (activation energy) |
Use collision theory |
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Rate of Reaction depends on |
Temperature, surface area, use of a catalyst and pressure/concentration |
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Rate of reaction |
Amount of product formed or reactant used / Time |
cm^3/s or g/s |
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Methods of measuring rate of reaction |
Precipitation and colour change Change in mass Volume of gas released |
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Reversible Reactions at equilibrium |
The two reactions are occurring at exactly the same rate causing the concentrations of both products and reactants to remain constant - no overall effect (dynamic equilibrium) |
Must be in a closed system |
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Factors affecting equilibrium |
Pressure, concentration and temperature |
Catalysts do not affect equilibrium |
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Le Chantilier’s Principle |
If the conditions of a reversible reaction at equilibrium are changed, the system will attempt to counteract the change |
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