Which of the following statements is correct | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A, B, C) $(1)$ Packing fraction: $2D-hcp = 0.906$,$2D-Square 	ext{ close packing} = 0.785$,$3D-hcp = 0.74$. Since $0.906 > 0.785 > 0.74$,the order i

Vedclass · Accepted Answer

Packing fraction: $2D-hcp > 2D-Square 	ext{ close packing} > 3D-hcp$

Vedclass · Answer

(A, B, C) $(1)$ Packing fraction: $2D-hcp = 0.906$,$2D-Square 	ext{ close packing} = 0.785$,$3D-hcp = 0.74$. Since $0.906 > 0.785 > 0.74$,the order is correct.$(2)$ Size of Void: $	ext{triangular void} $(3)$ Edge fraction occupied: $	ext{Edge fraction} = \frac{2r}{a}$. For $	ext{Primitive cubic}$,$a = 2r$,so $	ext{fraction} = 1$. For $	ext{bcc}$,$a = \frac{4r}{\sqrt{3}}$,so $	ext{fraction} = \frac{\sqrt{3}}{2} \approx 0.866$. For $	ext{fcc}$,$a = 2\sqrt{2}r$,so $	ext{fraction} = \frac{1}{\sqrt{2}} \approx 0.707$. Thus,$	ext{Primitive} > 	ext{bcc} > 	ext{fcc}$.All statements are correct.

Which of the following statements is correct regarding the packing efficiency or void size?

Similar Questions

What is the percent by mass of titanium in rutile,a mineral that contains titanium and oxygen,if the structure can be described as a closest-packed array of oxide ions,with titanium in one half of the octahedral holes? What is the oxidation number of titanium? $(Ti = 48, O = 16)$

Which of the following is incorrectly matched?

Which of the following statement(s) is (are) correct?

In the given cooling curve,what is the crystallization temperature in $K$?

Which one of the following statements is not correct?

Vedclass Test Series

Exam Paper Generator

Online Exam Module