For the equilibrium reaction: 2NO2(g) ⇌ N2O4(g), what is the effect of increasin

Practice Questions

Q1
For the equilibrium reaction: 2NO2(g) ⇌ N2O4(g), what is the effect of increasing the pressure? (2021)
  1. Shift to the left
  2. Shift to the right
  3. No effect
  4. Increase Kp

Questions & Step-by-Step Solutions

For the equilibrium reaction: 2NO2(g) ⇌ N2O4(g), what is the effect of increasing the pressure? (2021)
  • Step 1: Identify the reaction: 2NO2(g) ⇌ N2O4(g).
  • Step 2: Count the number of gas molecules on each side of the reaction.
  • Step 3: On the left side (reactants), there are 2 moles of NO2.
  • Step 4: On the right side (products), there is 1 mole of N2O4.
  • Step 5: Determine which side has fewer moles of gas. The right side has fewer moles (1 mole vs. 2 moles).
  • Step 6: Understand that increasing pressure in a reaction shifts the equilibrium towards the side with fewer moles of gas.
  • Step 7: Conclude that increasing the pressure will shift the equilibrium to the right side (N2O4).
  • Le Chatelier's Principle – This principle states that if an external change is applied to a system at equilibrium, the system will adjust to counteract that change and restore a new equilibrium.
  • Mole Count in Gaseous Reactions – Understanding the relationship between the number of moles of gas on each side of a reaction is crucial for predicting the direction of the shift in equilibrium when pressure changes.
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