ice structure. The reaction and the I latt between them is thus simply additive
ID: 285839 • Letter: I
Question
ice structure. The reaction and the I latt between them is thus simply additive properties of G, S, and V: Calcite Aragonite Using the data in Table 2.2 a. Determine which of these forms is stable at the surface of the Earth (25°C and 0.1 MPa). HINT: calculate the change in Gibbs Free Energy for the reaction; if AG >0, then reactant is stable and vice versa Which form is favored by increasing temperature? (HINT: Recall EQ 2.129; if AS>0, then product is stable and vice versa) b. c. Which form is favored by increasing pressure? (HINT: Recall E0 2.128 ifAv 0, then reactant is stable and vice versa)Explanation / Answer
A. Calcite is more stable in the earth surface. Although temperature and pressure change this two minerals. But generally calcitic rocks are mostly found in th e earth crust.
B. Calcite Crystal structure is favoured by the increasing temperature.
C. Aragonite Crystal structure is stable at high pressure.
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