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- For precipitation to form the following environmental condition must be achieved except for a. weather condition suitable for condensation b. sufficient nuclei must be present c. products of condensation must reach the earth d. water droplets must achieved colloidal suspensionProvide relevant infomation about the constituents of OPC in the blank cells of the following uble Specific gravity Peroent by weight Rate of S.N Constituent Desity Role Size hydration Tricalcium aluminate Tetracalcium 2 aluminoferite 3 Helite 4 Alite GypumProblems arise if the contaminant concen- tration in the influent to the manufacturing step rises above a critical acceptable level (ca). Again, assuming that the contaminant con- centration in the municipal water is zero and that the UPW system does not remove any of this contaminant, solve for the recycle ra- tio (RR = R/Q) as a function of the other known quantities, Q, ca, and W. NOTE: for the purpose of answering this question, use "ca" to denote Ca.
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