The formation of diamond from graphite is a process of considerable importance.

(a) Using data in Appendix L, calculate Δ_r S°, Δ_r H°, and Δ_rG° for this process at 25°C.
(b) The calculations will suggest that this process is not possible at any temperature. However, the synthesis of diamonds by this reaction is a commercial process. How can this contradiction be rationalized? (Note: In the industrial synthesis, high pressure and high temperatures are used.)

Data given in Appendix L

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graphite diamond