National 5ChemistrySQAExam QuestionsNature’s ChemistryEnergy From Fuels

Energy From Fuels (SQA National 5 Chemistry): Exam Questions

Exam code: X813 75

3 mins3 questions
1
1 mark

When 5 g of a fuel was burned, 150 kJ of energy was released.

Calculate the energy, in kJ, that would be released if 60 g of the fuel was burned.

  • 30

  • 150

  • 1800

  • 9000

Choose your answer

2
1 mark

The apparatus shown was used to measure the energy released when four different fuels were burned.

Diagram showing a beaker with water and a thermometer on a stand, heated by a fuel burner below. Labels indicate thermometer, glass beaker, water, and fuel.

In which experiment was the most energy released?

Mass of water (kg)

Temperature rise (°C)

A

0.05

10

B

0.05

20

C

0.25

8

D

0.25

18

    Choose your answer

    3
    1 mark

    A student set up an experiment to determine the quantity of energy released when a hydrocarbon burns.

    Which of the following diagrams shows the apparatus which would produce the most accurate result?

    • Diagram of an experimental setup with a thermometer in a glass beaker on a stand, surrounded by a draught shield, with a lit burner underneath.
    • Diagram of a calorimeter setup with a thermometer in a metal can above a flame, surrounded by a draught shield to reduce heat loss.
    • Diagram showing a thermometer inserted into a metal can above a lit Bunsen burner, illustrating temperature measurement in a heating experiment.
    • Diagram of a laboratory setup with a thermometer in a glass beaker being heated by a Bunsen burner. Labels indicate the thermometer and beaker.

    Choose your answer