In the 1940s the De Beers Mines Company of South Africa coined the slogan “A diamond is forever”. Later, during an advertising campaign to increase diamond sales, the company linked it to being the symbol of “everlasting love and value”. The company continues to use this slogan over fifty years later. Over time, a reaction occurs where the highly ordered molecular structure of diamond is converted to a less ordered and more stable allotrope called graphite, which invalidates the company’s slogan according to the second law of thermodynamics. Using the reaction information provided answer the following questions.

A) Which allotrope has higher entropy, diamond or graphite? Why?

B) Will the reaction occur spontaneously or non-spontaneously, if so how do you know? Is it an exergonic or endergonic reaction?

C) Is the ∆G of the reaction positive, negative or zero?