A Catalytic Converter Is Being Tested with a Pyrometer

question 6

Multiple Choice

A catalytic converter is being tested with a pyrometer. The outlet temperature is 100 degrees Fahrenheit higher than the inlet temperature. What is indicated?

• A)The engine is running hot
• B)The engine is running too lean
• C)Nothing is happening in the converter
• D)The converter is operating properly

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Definitions:

Michael Acceptor

A compound that can accept an electron-rich nucleophile, often characterized by an electron-withdrawing group adjacent to a carbon-carbon double bond.

Michael Reaction

A conjugate 1,4-addition reaction of a carbon nucleophile to an α,β-unsaturated carbonyl compound.

α,β-unsaturated Carbonyl

An organic compound with a double bond between the alpha and beta carbon atoms adjacent to a carbonyl group, participating in various chemical reactions.

PhCOCH

A general formula shorthand for compounds where a benzene ring (indicated by Ph, standing for phenyl) is attached to a carbonyl group (CO) and an additional unspecified group (CH), leading to a variety of possible chemical structures.