Rates of reaction

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Question 34

The graph shows how the volume of carbon dioxide gas produced changes over time during the reaction between calcium carbonate chips and dilute hydrochloric acid.

A graph showing the volume of carbon dioxide gas produced in cm³ on the vertical axis against time in seconds on the horizontal axis. The curve starts steep from the origin, gradually becomes less steep as time increases, and eventually levels off to a horizontal line.

Explain, in terms of particles, why the rate of this reaction decreases as the reaction takes place.

[3]

Rates of reaction

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

Question 34

The graph shows how the volume of carbon dioxide gas produced changes over time during the reaction between calcium carbonate chips and dilute hydrochloric acid.

A graph showing the volume of carbon dioxide gas produced in cm³ on the vertical axis against time in seconds on the horizontal axis. The curve starts steep from the origin, gradually becomes less steep as time increases, and eventually levels off to a horizontal line.

Explain, in terms of particles, why the rate of this reaction decreases as the reaction takes place.

[3]

Rates of reaction

Question 34

Rates of reaction Questions

Rates of reaction

Question 34

Rates of reaction Questions