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  5. Engineering Chemistry (CHEN10022)

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Important Concecpt Summary for Engineering Chemistry
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Provide a detail explanation and in depth summary of important concepts covering part 1 of Engineering Chemistry module for 1st year Chemical Engineering student at the University of Manchester.

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  • December 24, 2024
  • 18
  • 2023/2024
  • Summary

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Electron Transition (From higher state to lower state
energy energy
of
↳ release
energy
in torm photon (light

↓r
Fupper- Flower
=




↓ = Planet's constant (6 63x10" .
JS)
v =
Frequency (S" ,
Hz)



But
frequency can
be written as : c = v . 2 -v =
*

din
C =
speed of
light vacuum =
3x100mst)

X :
wavelength (a)

w :
warnumber ( = w)



hv h h
E = =


z =
.

,Atomic Orbital Shapes




Electron Orbitals
Filling Rules




#bau Principle : I are added to the lowest
energy
orbital available



that
&
Exclusion Principle : An orbital an hold maximum of 2 a
spin in
opposite direction



Hand's Rule : Fill the orbital so that it resulted in maximum # of unpaired ef
-
-




2p" : 111




=>

, Ionisation : for make a from mole of ston
energy removing of
gaseous
me
energy
one




x(g)
- x
g
,
+ e




mole from ator
Electron
affinity for
accepting of e mole of
:
energy one a
gaseous



x(y)
+ e-
xig)

to
Octet Rule : atons prefer have
complety filled man
energy
level.

↳
give or take e




Ionic bond :
completed traster of e-from one ator to another
delectronegativites > 1 . 5)

-



compound is held
together by electrostatic attraction Conic bond (




Nat : 3
Nati

bond to octet rule celectronegativites 0
Lovalent sharing e fulfill
: =




+
interacts with both nuclei



Polar covalent bond :
unequal sharing of t between two atan
Co-electronegativites <1 .
5)

↳ results from how much really likes
one ef




S Selectronegativity (


y
>




than partially
Fattracts e"
stronger H
,
which is
why its

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