Methane and chlorine react to form chloroform and hydrogen chloride, like this: CH4(9)+ 3Cl₂(g) → CHC13(9)+3HCl(g) The reaction is exothermic. Suppose a mixture of CH4, C1₂, CHCl3 and HCl has come to equilibrium in a closed reaction vessel. Predict what change, if any, the perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left. perturbation The temperature is lowered. change in composition The pressure of CH4 will The temperature is raised. The pressure of CHCl3 will ✓? go up. go down. not change. ? shift in equilibrium to the right Oto the left (none) to the right. Oto the left (none)

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Chapter1: Chemical Foundations
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Methane and chlorine react to form chloroform and hydrogen chloride, like this:
CH4(g) + 3Cl₂(g) → CHC13(g) + 3HCl(g)
The reaction is exothermic. Suppose a mixture of CH4, C1₂, CHC13 and HCl has come to equilibrium in a closed reaction vessel. Predict what change, if any,
the perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left.
perturbation
The temperature is
lowered.
change in composition
The pressure of CH4 will
The temperature is raised. The pressure of CHCl3 will
✓ ?
go up.
go down.
not change.
?
↑
shift in equilibrium
O
X
to the right
to the left
(none)
to the right
to the left
(none)
Ś
Transcribed Image Text:Methane and chlorine react to form chloroform and hydrogen chloride, like this: CH4(g) + 3Cl₂(g) → CHC13(g) + 3HCl(g) The reaction is exothermic. Suppose a mixture of CH4, C1₂, CHC13 and HCl has come to equilibrium in a closed reaction vessel. Predict what change, if any, the perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left. perturbation The temperature is lowered. change in composition The pressure of CH4 will The temperature is raised. The pressure of CHCl3 will ✓ ? go up. go down. not change. ? ↑ shift in equilibrium O X to the right to the left (none) to the right to the left (none) Ś
Expert Solution
Step 1

According to Le chateliar's principle, the reaction at the equilibrium shifts in a direction that nullifies the applied perturbation.

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