The Reaction A $\to$ Products Is Second Order

question 9

Multiple Choice

The reaction A $\to$ products is second order.If the initial concentration of A is 0.436 M and,after 52.8 seconds have elapsed,the concentration of A has fallen to 0.0476 M,what is the rate constant of the reaction?

• A)0.0419 M^-1 s^-1
• B)0.354 M^-1 s^-1
• C)0.0131 M^-1 s^-1
• D)0.00736 M^-1 s^-1
• E)0.0189 M^-1 s^-1

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Definitions:

Septum

A partition separating two chambers, such as in the heart or nose, that is typically made of muscle or bone.

Anterior Nares

The technical term for the nostrils, which are the external openings of the nasal cavity.

Rhinorrhea

The medical term for a runny nose, characterized by the excessive discharge of mucus from the nose.

Rhinovirus

A genus of viruses that is a predominant cause of the common cold, characterized by symptoms like sore throat, runny nose, and cough.