For a chemical reaction with rise in temperature by 10°, the rate constant becomes nearly ____________________.
Double
Options Analysis:
- Triple → Too high for most reactions
- half → Would indicate rate decrease (requires cooling)
- Double → Correct for most chemical reactions
- one-fourth → Extreme rate decrease (not typical)
Correct Answer:
Double
The rate constant approximately doubles for most chemical reactions when temperature increases by 10°C, as described by the Arrhenius equation and Q₁₀ rule.
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(2) Melting of ice
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