AP Chemistryeasymcq1 pt
For 2HI(g) ⇌ H₂(g) + I₂(g), K = 0.020. What is K for H₂(g) + I₂(g) ⇌ 2HI(g)?
A.50
B.0.020
C.0.040
D.0.0004
Explanation
Core Concept
Reversing the reaction inverts K: 1/0.020 = 50. The forward decomposition constant's reciprocal is the formation constant.
Correct Answer
A50
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