Question
Explain linear packing in one direction.
OR
Explain close packing in one dimension.

Answer

Linear packing in one direction or close packing in one dimension :
The constituent particles of the crystal may be of varying shapes but for better understanding we consider particles as hard spheres of equal size.
Image
There is only one way of arranging or packing spheres placed in a horizontal row touching one another. Since one sphere is in contact with two neighbouring spheres except the end atoms, the coordination number in this arrangement is two. This packing may be in any one direction x, y or z.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A conductivity cell filled with $0.02 M AgNO _3$ gives at $25^{\circ} C$ resistance of $947$ ohms. If the cell constant is $2.3 cm ^{-1}$, what is the molar conductivity of $0.02 M AgNO _3$ at $25^{\circ} C ?$
Ammonia and oxygen react at high temperature as:
$
4 NH _{3( g )}+5 O _{2( g )} \longrightarrow 4 NO _{( g )}+6 H _2 O _{( g )}
$
In an experiment, rate of formation of $NO _{( g )}$ is $3.6 \times 10^{-3} mol L ^{-1} \cdot s ^{-1}$
Calculate: (a) Rate of disappearance of ammonia. (b) Rate of formation of water.
What are electrochemical reactions ?
What are rare earth elements?
How many moles of electrons are required for the reduction of (i) 3 moles of $Zn ^{2+}$ to $Zn$,
(ii) 1 mol of $Cr ^{3+}$ to $Cr$ ?
How many Faradays of electricity will be required in each case?
A chemical reaction occurs in the following steps:
(i) $NO _{2( g )}+ F _{2( g )} \longrightarrow NO _2 F _{( g )}+ F _{( g )} \quad$ (slow)
(ii) $F _{( g )}+ NO _{2( g )} \longrightarrow NO _2 F _{( g )}$ (fast)
(a) Write the equation of overall reaction.
(b) Write down rate law.
(c) Identify the reaction intermediate.
What is the action of acetic anhydride on ethylamine, diethylamine and triethylamine?
Derive the relation between molar mass of the solute and boiling point elevation.
Write two points of difference between properties of phenol and ethyl alcohol.
$A$ solution containing $3\ g$ of solute A ($M = 60\ g/mol$) in $1\ L$ solution is isotonic with a solution containing $8.55\ g$ of solute $B$ in $500\ mL$ solution. What is the molar mass of $B?$