"A Diamond Is Forever" Is One of the Most Successful

question 3

Multiple Choice

"A diamond is forever" is one of the most successful advertising slogans of all time. But is it true? For the reaction shown below, calculate the standard free energy change at 298K and determine whether or not a diamond is "forever". C(diamond) → C(graphite)
Data: ΔH_f°(diamond) = 1.895 kJ/mol; S°(diamond) = 2.337 J mol⁻¹K⁻¹; S°(graphite) = 5.740 J mol⁻¹K⁻¹.

• A)Δ G° = 2.19 kJ; forever
• B)Δ G° = −1.90 kJ; not forever
• C)Δ G° = −2.90 kJ; not forever
• D)Δ G° = 1.90 kJ; forever
• E)Δ G° = < −1000 kJ; not forever

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Definitions:

Cross-modal Transfer

The ability to apply learning and adapt behaviors based on information received through different sensory modes.

Habituation/dishabituation

A behavioral process where an organism reduces its response to a repeated stimulus, and dishabituation occurs if a new stimulus alters the response.

Visual Preference

The tendency to selectively pay attention to certain visual stimuli over others, based on interest or attraction.

Auditory Preferences

The tendency or inclination people have towards specific types of sounds or music.