Figure 2 shows the rate of reaction at a number of different temperatures for a reaction between marble and acid.
Describe how the rate of reaction changes as the temperature is increased.
Explain the why the rate of reaction changes as your have describe in question 1
State three variables that would need to be controlled for this reaction.
State and explain the effect of using the same mass of marble but larger pieces on the rate of reaction.
The experiment was repeated with acid that was twice as concentrated. State two differences you would expect in the results.
A student investigate the change in mass of a nail that was sealed in a box with air and water.
The experiment was conducted at a number of different temperatures. The results are shown in the graph to the right. Use the graph to describe the relationship between the temperature and the increase in mass of the nail.
The student increased the pressure inside the box. How would this affect the rate of reaction? Explain your answer.
The nail was cut up into smaller pieces. How would this affect the rate of reaction? Explain your answer.