AQA Chemistry Rates of Reaction | Baamboozle - Baamboozle

What does it show when the line of the graphs has levelled off (gone flat)?

That the reaction has stopped

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What is the name of the piece of equipment labelled A?

Gas syringe

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Which line, A or B, shows the fastest reaction? Explain your choice.

A because the line starts steeper or there is more gas produced in a shorter time

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What is the name given to the energy that particles must have for a collision to be successful?

Activation energy

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Which reaction, A or B, finishes first? How can you tell?

A because the line levels off in the shortest amount of time

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What are the two ways to calculate the rate of a reaction?

quantity of reactant used divided by time or quantity of product formed divided by time

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For both reactions, A and B, the rate of reaction slows down as time progresses. Why does this happen?

The reactants are being used up in the collisions, so their concentration decreases. This means less frequent collisions until one reactant is used up

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If we increase the concentration of a reaction in equilibrium, will the reaction shift in the forward or backward direction?

Forward

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If we decrease the pressure of a reaction in equilibrium, which direction will the reaction shift in? Hint: think about the number of molecules

Towards the side with more molecules

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How can we increase the surface area of a solid?

Grind it up into a powder/cut it into smaller pieces

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What are the two methods for measuring the volume of gas produced in a reaction?

Gas syringe or measuring cylinder filled with water

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What is activation energy?

The amount of energy needed to start a reaction

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