Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 05 Oct 2017 My Price 7.00

carbonate CaCO3,

The shells of marine organisms contain calcium carbonate CaCO3, largely in a crystalline form known as calcite. There is a second crystalline form of calcium carbonate known as aragonite. Physical and thermodynamic properties of calcite and aragonite are given in the following table.

a. Based on the thermodynamic data given, would you expect an isolated sample of calcite at T = 298 K and P = 1 bar to convert to aragonite, given sufficient time? Explain.

b. Suppose the pressure applied to an isolated sample of calcite is increased. Can the pressure be increased to the point that isolated calcite will be converted to aragonite? Explain.

c. What pressure must be achieved to induce the conversion of calcite to aragonite at T = 298 K. Assume both calcite and aragonite are incompressible at T = 298 K.

d. Can calcite be converted to aragonite at P = 1 bar if the temperature is increased? Explain.

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Maurice Tutor
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Status NEW Posted 05 Oct 2017 04:10 PM My Price 7.00

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