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Chemical Kinetics and Nuclear Chemistry question

2011 · Shift 0 · Q22
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Chemical Kinetics and Nuclear Chemistry question

2011 · Shift 0 · Q22

JEE MainChemistryChemical Kinetics and Nuclear ChemistryMCQ+4 / −1
The rate of a chemical reaction doubles for every 10oC rise of temperature. If the temperature is raised by 50oC , the rate of the reaction increases by about :
  1. A
    24 times
  2. B
    32 times
  3. C
    64 times
  4. D
    10 times
View written solutionFree

Correct answer: B

  1. Given condition

    The rate of reaction doubles for every 10∘C10^\circ\text{C}10∘C rise in temperature.

  2. Total temperature rise

    The temperature is increased by 50∘C50^\circ\text{C}50∘C.

    Number of 10∘C10^\circ\text{C}10∘C intervals: 5010=5\frac{50}{10} = 51050​=5

  3. Effect on rate

    Since the rate doubles each time, after 5 such increases: Rate increase factor=25=32\text{Rate increase factor} = 2^5 = 32Rate increase factor=25=32

  4. Match with options

    • A: 242424 times
    • B: 323232 times
    • C: 646464 times
    • D: 101010 times

    Therefore, the correct option is B.

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