A phase is a part of a system with what type of composition?

Chemistry

1 answer:

TiliK225 [7]3 years ago

6 0

Answer:

uniform composition.

Explanation:

A phase is a part of a system with uniform composition.

In physics and chemistry , a phase in a physically distinctive form of matter , such as solid , liquid , gas or plasma.
A phase matter is characterised by having relatively uniform chemical and physical properities . Phases are different from states of matter.
The states of matter (e.g ., solid , liquid , gas ) are phases but matter can exist in different phases and yet be in the same type of matter. For example , liquid mixtures can exist in multiple phases such as oily and aqueous phase.
some different types of phases are : solid, liquid,gas , plasma etc.
The term phase can also sometime mean describe equilibrium in phase diagram

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Answer:

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Explanation:

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(1) Preparatory phase

During preparatory phase glucose is converted into fructose-1,6-bisphosphate. Till this time the carbon numbering remains the same i.e. if we will label carbon at 6th position of glucose, its position will remian the same in fructose-1,6-bisphosphate that means the labeled carbon will still remain at 6th position.

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During this phase, GAP is dehydrogenated into 1,3-bisphosphoglycerate (BPG) with the help of enzyme glyceraldehyde 3-phosphate dehydrogenase. This oxidation is coupled to phosphorylation of C1 of GAP and this is the reason why 1,3-bisphosphoglycerate has phosphates at 2 positions i.e. at position 1 in which phosphate is newly added and position 3rd which already had labeled carbon.

It is pertinent to mention here that BPG has a mixed anhydride and the bond at C1 is a very high energy bond. In the next step, this high energy bond is hydrolyzed into a carboxylic acid with the help of enzyme phosphoglycerate kinase and the final product is 3-phosphoglycerate. Hence, the carbon with low energy phosphate i.e. the carbon at 3rd position remains labeled.

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