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Flashcards in C1b-using Carbon Fuels Deck (12)
1

Why is the amount of fossil fuels being burnt is increasing?

Increasing world population
Growth of use in developing countries eg india china

2

What is a fuel?

A substance that reacts with oxygen to release energy

3

How can you test for carbon dioxide?

Limewater will turn milky if carbon dioxide is present

4

What is the word equation for complete combustion?

Hydrocarbon + oxygen--> carbon dioxide + water

5

What is the balanced symbol equation for the complete combustion of methane?

CH4 + 2O2 --> CO2 + 2H2O

6

Why does incomplete combustion take place?

When there isn't enough oxygen when you're burning a fuel

7

What are the advantages of complete combustion over incomplete combustion?

It doesn't produce any poisonous gases like carbon dioxide
Doesn't produce soot

8

What is the word equation for incomplete combustion?

Hydrocarbon + oxygen --> carbon dioxide + water + carbon monoxide + carbon

9

What is the balanced symbol equation for the incomplete combustion of methane? (carbon)

CH4+ O2 --> C + 2H2O

10

What factors should be considered when choosing the best fuel?

Toxicity
Energy value
Availability
Cost
Usage (ease of use)
Pollution
Storage

11

Describe an experiment to show that combustion of a hydrocarbon in a plentiful supply of air produces carbon dioxide and water

The water pump draws gases from the burning hexane through the apparatus. Water collects inside the cooled U tube and you can show that its water by checking its boiling point. The limewater turns milky, showing that carbon dioxide is present.

12

Describe an experiment to show that combustion of a hydrocarbon in a plentiful supply of air produces carbon dioxide and water

The water pump draws gases from the burning hexane through the apparatus. Water collects inside the cooled U tube and you can show that its water by checking its boiling point. The limewater turns milky, showing that carbon dioxide is present.