Chemical Equilibrium - Qualitative Practice

What is the equilibrium expression for:
Fe₃O₄(s) + 4H₂(g) <--> 3Fe(s) + 4H₂O(g)

• ([Fe]³[H₂O]⁴ ) / ([Fe₃O₄][H₂]⁴)
• ([Fe₃O₄][H₂]⁴)/ ([Fe]³[H₂O]⁴)
• [H₂O]⁴ / [H₂]⁴
• ([Fe][H₂O]) / ([Fe₃O₄][H₂])

Tags

NGSS.HS-PS1-6

NGSS.HS-PS1-7

Consider this system:
2CCl₄(g) + O₂(g)<->2COCl₂(g) + 2Cl₂(g)  ΔH = -35 kJ/mol_rxn
Predict the effect of adding CCl₄(g)

• Speed up forward reaction.
• Speed up reverse reaction.
• No change.

Consider this system:
2CCl₄(g) + O₂(g)<->2COCl₂(g) + 2Cl₂(g)  ΔH = -35 kJ/mol_rxn
Predict the effect of increasing temperature

• Speed up forward reaction.
• Speed up reverse reaction.
• No change.

Consider this system:
2CCl₄(g) + O₂(g)<->2COCl₂(g) + 2Cl₂(g)  ΔH = -35 kJ/mol_rxn
Predict the effect of adding He gas into the system's adjustable container.

• Speed up forward reaction.
• Speed up reverse reaction.
• No change.

Consider this system:
2CCl₄(g) + O₂(g)<->2COCl₂(g) + 2Cl₂(g)  ΔH = -35 kJ/mol_rxn
Predict the effect of adding a catalyst.

• Speed up forward reaction.
• Speed up reverse reaction.
• No change.

• A
• B
• C
• D