For every 10°C rise in temperature, the rate of chemical reaction doubles. When the temperature is increased from 30 to 70°C, the rate of reaction increases ______________ times?
Correct answer: C. 16
- A. 8
- B. 12
- C. 16
- D. 32
Explanation
The temperature rises by 40°C, corresponding to four 10°C intervals. Doubling at each interval gives 2⁴ = 16 times the original rate.
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