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how much is the heat of transformation ptassium(bcc) to potassium (fcc)? i.e., delta H?

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11y ago

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Is ammonia an allotrope?

No. Ammonia is a compound. An allotrope is a substance in its elemental form.


Can you convert one allotrope of carbon to the next allotrope of carbon?

From Wikipedia: "Allotropy or allotropism is a behavior exhibited by some chemical elements: these elements can exist in two or more different forms, known as allotropes of that element. In each allotrope, the element's atoms are bonded together in a different manner." Conversion, therefore (logically) would mean that one would be able to reduce the carbon allotrope to atoms and then re-assemble them into a different allotrope. For example, in order to form a diamond allotrope from a group of carbon atoms requires enormous amounts of pressure and temperature.


Who discover the third allotrope buckminster fullerene?

In 1985, a third crystalline allotrope of carbon called fullerenes was discovered collectively by three scientists namelyR.E. SmalleyR.F. CurlH.W. Kroto


Is ethane a allotrope?

No, ethane is not an allotrope. Allotropes are different structural forms of the same element, while ethane is a compound composed of carbon and hydrogen atoms.


Why is there an allotrope of silicon with the same structure as diamond but no allotrope of silicon with the same structure as graphite?

Silicon has an allotrope with a diamond-like structure (beta-silicon or lonsdaleite) due to its ability to form tetrahedral covalent bonds like carbon. However, the lack of an allotrope with a graphite-like structure is because silicon atoms have a larger atomic radius than carbon, making it difficult to form the layered structure found in graphite.