Photo AI
For a particular equilibrium mixture, the temperature is lowered and the amount of ClF₃ changes by 0.010 mol - VCE - SSCE Chemistry - Question 10 - 2003 - Paper 1
Question 10
For a particular equilibrium mixture, the temperature is lowered and the amount of ClF₃ changes by 0.010 mol. The changes occurring would be: | | ClF₃... show full transcript
Worked Solution & Example Answer:For a particular equilibrium mixture, the temperature is lowered and the amount of ClF₃ changes by 0.010 mol - VCE - SSCE Chemistry - Question 10 - 2003 - Paper 1
Step 1
The changes occurring would be:
Answer
Considering Le Chatelier's principle, when the temperature of an equilibrium system is lowered, the equilibrium will shift in the direction that produces heat to counteract this change. For the mixture involving ClF₃, a decrease in temperature will favor the exothermic reaction, which leads to an increase in the formation of reactants and a decrease in the formation of products. Thus, ClF₃ is expected to decrease by 0.010 mol, leading to the assessment of the other species:
- F₂ will decrease by 0.015 mol
- Cl₂ will decrease by 0.0050 mol
Thus, the correct answer is A: Increase of ClF₃ by 0.010 mol, decrease of F₂ by 0.015 mol, and decrease of Cl₂ by 0.0050 mol.