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    What is the activation energy for acid hydrolysis of sucrose?
    Question

    What is the activation energy for acid hydrolysis of sucrose?

    A.

    6.21 kJ mol⁻¹

    B.

    6.20 kJ mol⁻¹

    C.

    6.22 kJ mol⁻¹

    D.

    6.24 kJ mol⁻¹

    Correct option is C

    The correct answer is (C) 6.22 kJ mol⁻¹

    Explanation:
    • The activation energy for the acid-catalyzed hydrolysis of sucrose (inversion of cane sugar) is widely referenced as 6.22 kJ mol⁻¹ in standard chemical kinetics literature.
    • This reaction involves the cleavage of sucrose into glucose and fructose.

    Information Booster:
    • When an enzyme (like sucrase/invertase) catalyzes this reaction instead of acid, the activation energy decreases significantly, demonstrating the efficiency of biological catalysts.

    Additional Knowledge:
    • The values provided in options A, B, and D are extremely close distractors, but 6.22 kJ mol⁻¹ is the exact empirically measured standard value tested in chemistry.

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