Questions: CH4(g) + Cl2(g) → CHCl3(l) + HCl(g)

CH4(g) + Cl2(g) → CHCl3(l) + HCl(g)
Transcript text: \[ \mathrm{CH}_{4}(g)+\mathrm{Cl}_{2}(g) \rightarrow \mathrm{CHCl}_{3}(l)+\mathrm{HCl}(g) \]
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Solution

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Solution Steps

Step 1: Identify the Reaction Type

The given chemical reaction is: \[ \mathrm{CH}_{4}(g) + \mathrm{Cl}_{2}(g) \rightarrow \mathrm{CHCl}_{3}(l) + \mathrm{HCl}(g) \] This reaction involves the substitution of hydrogen atoms in methane (\(\mathrm{CH}_4\)) with chlorine atoms from \(\mathrm{Cl}_2\), resulting in the formation of chloroform (\(\mathrm{CHCl}_3\)) and hydrochloric acid (\(\mathrm{HCl}\)). This is a substitution reaction.

Step 2: Balance the Chemical Equation

To balance the chemical equation, ensure that the number of each type of atom on the reactant side equals the number on the product side.

  • Carbon (C): 1 on both sides.
  • Hydrogen (H): 4 on the reactant side, 1 in \(\mathrm{CHCl}_3\) and 1 in \(\mathrm{HCl}\) on the product side. Total 2 on the product side.
  • Chlorine (Cl): 2 on the reactant side, 3 in \(\mathrm{CHCl}_3\) and 1 in \(\mathrm{HCl}\) on the product side. Total 4 on the product side.

To balance the equation, adjust the coefficients: \[ \mathrm{CH}_{4}(g) + 3\mathrm{Cl}_{2}(g) \rightarrow \mathrm{CHCl}_{3}(l) + 3\mathrm{HCl}(g) \]

Step 3: Verify the Balanced Equation

Check each type of atom to ensure the equation is balanced:

  • Carbon (C): 1 on both sides.
  • Hydrogen (H): 4 on both sides.
  • Chlorine (Cl): 6 on both sides.

The equation is now balanced.

Final Answer

The balanced chemical equation is: \[ \boxed{\mathrm{CH}_{4}(g) + 3\mathrm{Cl}_{2}(g) \rightarrow \mathrm{CHCl}_{3}(l) + 3\mathrm{HCl}(g)} \]

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