Skip to content
MathsGenie logo
Quick links
Open app

Course home

  1. GCSE
  3. Chemistry Edexcel
  5. Question bank

Rates of reaction

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121
Question 25

A student investigates the rate of reaction between dilute sulfuric acid and zinc.

In the first experiment, they use large zinc granules. The results are plotted as line 'Y' on the graph below.

A grid showing a graph of 'Volume of gas in \text{cm}^3' on the y-axis from 0 to 100, and 'Time in seconds' on the x-axis from 0 to 120. Curve 'Y' starts at the origin (0,0), curves upwards with a decreasing gradient, levels off horizontally at a gas volume of 60 cm<sup>3</sup> at 80 seconds, and remains constant at 60 cm<sup>3</sup> up to 120 seconds.

The student repeats the experiment using the same volume and concentration of acid and the same mass of zinc, but uses zinc dust (smaller particle size) instead of granules.

All other conditions are kept the same.

Draw a line on the grid to show the expected results for the reaction using the zinc dust.

Label this line 'Z'.

[2]

Rates of reaction Questions

  1. GCSE
  2. /Chemistry
  3. /Rates of reaction

Question bank