C5.2.1 - Rate Of Reaction Flashcards

1
Q

What is rate of reaction?

A

A measure of how quickly reactants are used of products are formed

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2
Q

What is the equation for rate of reaction?

A

Amount of reactant used / time taken

Amount of product formed / time taken

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3
Q

What are the two methods of measuring gas?

A

Upside down measuring cylinder in water

Gas syringe

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4
Q

Why is the gas syringe good for measuring gas?

A

It is made from glass

It is marked in cm cubed

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5
Q

Why do we use the gas syringe to calculate rate of reaction?

A

To measure how much gas is being formed or how much gas is being used

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6
Q

What equation is used to calculate the mean rate of reaction?

A

Change in volume / change in time

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7
Q

On a graph, how do you calculate the instantaneous rate of reaction?

A

You have to draw a tangent at the point where you want to calculate the rate - the gradient is the instantaneous rate of reaction

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