a)
State three ways of monitoring concentration changes in a reaction.
[3]
b)
A reaction is monitored by measuring the volume of a gas produced every 10 seconds. State an appropriate unit to use.
[1]
c)
Sketch a graph to show the volume of gas produced during the course of an experiment against the time taken.
[4]
d)
State the effect that increasing concentration has on the rate of a reaction.
[1]
a)
State the effect that increasing temperature has on the rate of a reaction.
[1]
b)
Sketch a line on the graph to show the same reaction occurring at a higher temperature.
[3]
c)
State two variables that need to be controlled when investigating the effect of temperature on rate in the following reaction:
2HCl (aq) + Mg (s)
MgCl
2 (aq) + H
2 (g)
[2]
d)
Suggest an appropriate piece of equipment to use to measure the volume of H2 gas produced in the reaction between HCl and Mg.
[1]