C3 Chemical economics [1]

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  • Created by: GraceLong
  • Created on: 02-02-16 19:37
What does the rate of reaction measure?
How much product is formed in a fixed amount of time.
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Which two units can be used to measure the rate of reaction?
g/s (grams per second) cm3/s (centimeters cubed per second)
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What is the relationship between the limiting reactants and the amount of product?
Directly proportional eg. both double.
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What has to happen before particles react?
They have to collide and gain energy.
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Why does increasing the temperature increase the rate of reaction?
The particles have more energy and begin to move quicker which increases the chance of a successful collision. The rate of reaction also increases.
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How is the collision frequency described?
The number of successful collisions between reacting particles each second.
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How can graphs be used to show when the reaction has finished?
The line stops increasing and goes horizontal.
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Why must owners of factories of powders be careful?
Powders have a very large surface area and if they reach the atmosphere or a spark they will combust.
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How does surface area increase the rate of reaction?
Particles are more spread out and have a larger amount of particles for a chance of a successful collision.
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How can the relative atomic mass be found? (Hint: think periodic table)
The atomic mass is the largest number for the element on the peroidic table.
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What is the conservation of mass?
The reactants mass will always equal the reactants because mass cannot be lost or gained.
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Other cards in this set

Card 2

Front

Which two units can be used to measure the rate of reaction?

Back

g/s (grams per second) cm3/s (centimeters cubed per second)

Card 3

Front

What is the relationship between the limiting reactants and the amount of product?

Back

Preview of the front of card 3

Card 4

Front

What has to happen before particles react?

Back

Preview of the front of card 4

Card 5

Front

Why does increasing the temperature increase the rate of reaction?

Back

Preview of the front of card 5
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