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Pearson Edexcel International Advanced Level International Advanced Subsidiary/Advanced Level UNIT 2: Energetics, Group Chemistry, Halogenoalkanes and Alcohols QP MAY 2024 CA$18.87   Add to cart
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Pearson Edexcel International Advanced Level International Advanced Subsidiary/Advanced Level UNIT 2: Energetics, Group Chemistry, Halogenoalkanes and Alcohols QP MAY 2024
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  • Pearson Edexcel International Advanced Level

Pearson Edexcel International Advanced Level International Advanced Subsidiary/Advanced Level UNIT 2: Energetics, Group Chemistry, Halogenoalkanes and Alcohols QP MAY 2024

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  • September 2, 2024
  • 32
  • 2024/2025
  • Exam (elaborations)
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  • pearson edexcel international advanced level inter

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  • Pearson Edexcel International Advanced Level
  • Pearson Edexcel International Advanced Level

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Please check the examination details below before entering your candidate information
Candidate surname Other names


Centre Number Candidate Number




Pearson Edexcel International Advanced Level
Monday 13 May 2024
WCH12/01R
Morning (Time: 1 hour 30 minutes) Paper
reference

Chemistry 🞍 🞍


International Advanced Subsidiary/Advanced Level
UNIT 2: Energetics, Group Chemistry,
Halogenoalkanes and Alcohols

You must have: Total Marks
Scientific calculator, Data Booklet, ruler

Pearson Edexcel International Advanced Level International Advanced Subsidiary/Advanced Level UNIT 2: Energetics, Group
Chemistry, Halogenoalkanes and Alcohols QP MAY 2024

Instructions
•• Use black ink or ball‑point pen.
If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• centre
Fill in the boxes
number andatcandidate
the top ofnumber.
this page with your name,

•• Answer all
thequestions.
questions in the spaces provided
– there may be more space than you need.

Information
•• The total mark for this paper is 80.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• Into the question marked with an asterisk (*), marks will be awarded for your ability
structure your answer logically, showing how the points that you make are
related or follow on from each other where appropriate.
• A Periodic Table is printed on the back cover of this paper.

Advice

•• Read each question carefully before you start to answer it.
Show all your working in calculations and include units where appropriate.
•• Try to answer every question.
Check your answers if you have time at the end. Turn over


P78392A
©2024 Pearson Education Ltd.
F:1/1/1/1/1/1/

, SECTION A
Answer ALL the questions in this section.




DO NOT WRITE IN THIS AREA
You should aim to spend no more than 20 minutes on this section.

For each question, select one answer from A to D and put a cross in the box . If you change
your mind, put a line through the box and then mark your new answer with a cross .

1 A Maxwell‑Boltzmann distribution of molecular energies is shown.


P
Q




DO NOT WRITE IN THIS AREA
R S

(a) Which letter represents the mean energy of the molecules?
(1)
A letter P
B letter Q

C letter R
D letter S


(b) What happens to the curve when the temperature is decreased?
(1)
A the peak becomes higher and further to the right
DO NOT WRITE IN THIS AREA


B the peak becomes higher and further to the left

C the peak becomes lower and further to the right

D the peak becomes lower and further to the left

(Total for Question 1 = 2 marks)




2
🞍🞍🞍🞍

, 2 The reaction profile for a reaction is shown.
DO NOT WRITE IN THIS AREA




X
Products


W
Enthalpy Y

Z
Reactants




Progress of reaction

Which arrow represents the activation energy of the forward reaction?

A letter W
DO NOT WRITE IN THIS AREA




B letter X
C letter Y

D letter Z

(Total for Question 2 = 1 mark)

Use this space for any rough working. Anything you write in this space will gain no credit.
DO NOT WRITE IN THIS AREA




3
🞍🞍🞍🞍 Turn over

, 3 The reaction between calcium carbonate and hydrochloric acid is investigated.

CaCO3(s) + 2HCl(aq)  CaCl2(aq) + H2O(l) + CO2(g)




DO NOT WRITE IN THIS AREA
(a) Which change in property will not affect the rate of this reaction?
(1)

A concentration of hydrochloric acid

B particle size of calcium carbonate

C pressure of the system
D temperature of hydrochloric acid

(b) The graph shows the results of one of the experiments.

120




DO NOT WRITE IN THIS AREA
100



80
Volume of
carbon dioxide / cm3
60



40



20
DO NOT WRITE IN THIS AREA




0
0 20 40 60 80 100 120

Time / s




4
🞍🞍🞍🞍

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