The First-Order Rearrangement of CH₃NC Is Measured to Have a Rate

question 96

Multiple Choice

The first-order rearrangement of CH₃NC is measured to have a rate constant of 3.61 × 10^-15 s^-1 at 298 K and a rate constant of 8.66 × 10^-7 s^-1 at 425 K. Determine the activation energy for this reaction.

• A) 160. kJ mol^-1
• B) 240. kJ mol^-1
• C) 417 kJ mol^-1
• D) 127 kJ mol^-1
• E) 338 kJ mol^-1

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Definitions:

Leukocytes

White blood cells that are part of the immune system, responsible for protecting the body against both infectious disease and foreign invaders.

Antigens

Substances or toxins that are recognized by the immune system, triggering an immune response.

Humoral Immunity

A component of the immune response that involves the production of antibodies by B cells to fight off pathogens.

Cell-mediated Immunity

An immune response that does not involve antibodies but rather the activation of phagocytes, antigen-specific cytotoxic T-lymphocytes, and the release of various cytokines in response to an antigen.