ACT Science Practice Question #1484 (Medium (31)) | Test Citadel
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ACT Science Difficulty: Medium (31)

Digital ACT Science Practice Question #1484

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Consider the exothermic synthesis of ammonia in a closed container: N2(g) + 3 H2(g) <=> 2 NH3(g) + 92 kJ. A chemical engineer measures ammonia yield at equilibrium under four conditions: - Condition 1: 300 K, 10 atm -> 18% NH3 - Condition 2: 300 K, 50 atm -> 44% NH3 - Condition 3: 500 K, 10 atm -> 4% NH3 - Condition 4: 500 K, 50 atm -> 15% NH3 Based on these data and Le Chatelier's principle, which combination of temperature and pressure maximizes the equilibrium yield of NH3?
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Maximum yield is 44% at Condition 2: Low T (300 K) and High P (50 atm).

Masterclass Solution & Distractor Trap Analysis

Condition 2 produces the maximum yield (44%), which corresponds to low temperature (300 K) and high pressure (50 atm)....

Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...

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