Consider the cracking reaction below:
$$C_{16}H_{34} \rightleftharpoons C_{8}H_{18} + C_{6}H_{x} + 2C_{y}H_{z}$$
4.1.1 Define cracking - English General - NSC Physical Sciences - Question 4 - 2023 - Paper 2
Question 4
Consider the cracking reaction below:
$$C_{16}H_{34} \rightleftharpoons C_{8}H_{18} + C_{6}H_{x} + 2C_{y}H_{z}$$
4.1.1 Define cracking.
4.1.2 Write down the value... show full transcript
Worked Solution & Example Answer:Consider the cracking reaction below:
$$C_{16}H_{34} \rightleftharpoons C_{8}H_{18} + C_{6}H_{x} + 2C_{y}H_{z}$$
4.1.1 Define cracking - English General - NSC Physical Sciences - Question 4 - 2023 - Paper 2
Step 1
Define cracking.
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Answer
Cracking is the chemical process in which longer chain hydrocarbon molecules are broken down into shorter, more useful molecules. This process can involve thermal or catalytic methods.
Step 2
Write down the values represented by $x$, $y$, and $z$ in the equation above.
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Answer
x=6, y=14, z=6. These values represent the number of carbon and hydrogen atoms in the product molecules.
Step 3
Using MOLECULAR FORMULAE, write down the balanced equation for this reaction.
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Answer
The balanced equation for the complete combustion of compound C6H14 is:
