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The ratio of reaction rates at 100°C and 10°C is calculated as (100−10)/10 = 2^9. What is the value of this ratio?

1. The ratio is equal to 2.
2. The ratio is equal to 512.
3. The ratio is expressed as 2^9.
4. Reaction order can be zero, an integer, or a fraction.

Correct answer: The ratio is equal to 512.

Solution

The calculation shows that the ratio of rates at 100°C and 10°C is 512 times, which matches option B. This is derived from the Arrhenius equation and exponential dependence of rate on temperature.

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