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

question 68

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) ΔG° = 2.19 kJ; forever
• B) ΔG° = -1.90 kJ; not forever
• C) ΔG° = -2.90 kJ; not forever
• D) ΔG° = 1.90 kJ; forever
• E) ΔG° = < -1000 kJ; not forever

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Definitions:

Private Loan

A loan sourced from a private entity or individual, as opposed to a government or public lender.

Accrued Interest

Interest that has been incurred but not yet paid, typically relating to bonds or loans.

Pay Off

To completely settle a debt or an obligation.

Compounded Quarterly

A method of calculating interest where the interest is added to the principal balance four times a year.