Answer:
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4.03 Ecosystems Lab Report
Explanation:
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Siltstone and sandstone are both granular materials but they are distinguished by grain size. The Wentworth scale places silt particles between 0.0039 to 0.0625 mm. This is smaller than very fine grained sand.
Siltstone and Sandstone may have identical mineralogy. They are generally comprised of quartz, feldspar and rock fragments. Because siltstone is comprised of smaller grains, it has smaller pore throats, resulting in lower permeability and higher capillary pressures than in an equivalent porosity sandstone.
In order to reduce the activation energy in a chemical reaction. a catalyst is introduced to lower the activation energy of a reaction, so that a chemical reaction can take place. However, by increasing the temperature of a reaction helps the effect in increasing the number of reactant particles that have more energy than the activation energy. Therefore, by reducing the activation energy, the reaction would go faster.
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