The Decomposition of Formic Acid Follows First-Order Kinetics

question 27

Multiple Choice

The decomposition of formic acid follows first-order kinetics. HCO₂H(g) → CO₂(g) + H₂(g)
The half-life for the reaction at 550 °C is 24 seconds.How many seconds does it take for the formic acid concentration to decrease by 87.5%?

• A) 24 s
• B) 36 s
• C) 48 s
• D) 72 s
• E) 96 s

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