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Nitrogen dioxide can react with itself to produce dinitrogen tetroxide - HSC - SSCE Chemistry - Question 14 - 2022 - Paper 1
Question 14
Nitrogen dioxide can react with itself to produce dinitrogen tetroxide. 2NO2(g) ⇌ N2O4(g) K_eq = 0.010 In an experiment, 100.0 cm³ of NO2 is placed in a syringe. ... show full transcript
Worked Solution & Example Answer:Nitrogen dioxide can react with itself to produce dinitrogen tetroxide - HSC - SSCE Chemistry - Question 14 - 2022 - Paper 1
Step 1
B. The ratio \[ \left[ \text{NO}_2 \right] \over \left[ \text{N}_2\text{O}_4 \right] \] has decreased.
Answer
When the volume of the system is decreased, the concentration of the gaseous reactant (NO2) increases as the same amount of gas is now occupying a smaller volume. According to Le Chatelier's principle, the system will shift towards the right to reduce the pressure, favoring the production of N2O4. Hence, the concentration of N2O4 will increase, and the ratio [ \left[ \text{NO}_2 \right] \over \left[ \text{N}_2\text{O}_4 \right] ] will decrease.