GENERAL CHEMISTRY
Chemical Kinetics: Factors affecting the rate of reaction
Data sheet
Effects of temperature
TypeofWat
er
Ti
me(
s)
Rank
Tap
20mi
ns
2
Hot
Di
dnotdi
ssol
vecompl
et
el
y
(t
her
ewasst
i
l
lf
r
agment
s
af
t
er1hr
)
3
Col
d
Di
dnotdi
ssol
vecompl
et
el
y
(
t
het
abl
etwasst
i
l
li
nt
act
)
1
Gener
alobser
vat
i
onsont
heef
f
ect
soft
emper
at
ur
e
Basedont
heexper
i
ment
,t
het
abl
et(
Sodi
um Bi
car
bonat
e)di
ssol
vedf
ast
eri
nhotwat
er
compar
edt
ot
apandcol
dwat
er
.Ther
ef
or
e,r
eact
ant
sar
ehi
gl
ysol
ubl
ei
nhi
ghert
emper
at
ur
e
t
hani
nl
oweronesbecauset
her
ear
emor
eef
f
ect
i
vecol
l
i
si
onshappeni
ngdur
i
ngt
her
eact
i
on.
Ef
f
ect
sofSur
f
aceAr
ea
Tabl
etSi
ze
Ti
me(
s)
Rank
Whol
e
2mi
nut
esand36seconds
3
Chunck
1mi
nut
eand46seconds
2
Powder
1mi
nut
eand7seconds
1
Gener
alobser
vat
i
onsont
heef
f
ect
sofsur
f
acear
ea
Sodi
um bi
car
bonat
er
eact
sf
ast
eronvi
negari
fi
toccupi
esahi
ghersur
f
acear
ea.Ther
ef
or
e,
i
ft
hesur
f
acear
eaofar
eact
anti
si
ncr
eased,t
her
at
eofr
eact
i
oni
ncr
eases.I
ti
sbecausef
i
ner
par
t
i
cl
esar
emor
eexposedt
ot
heot
herpar
t
i
cl
esl
eadi
ngt
omor
ecol
l
i
si
ons.
Ef
f
ect
sofConcent
r
at
i
on
Baki
ngsoda(Tabl
eSpoon)
Ti
me(
s)
Rank
1
1mi
nut
eand7seconds
4
2
2mi
nut
esand23seconds
3
4
3mi
nut
esand15seconds
2
6
5mi
nut
esand25seconds
1
Bal
ancedChemi
calEquat
i
on
NaHCO3+HC2H3O2→ NaC2H3O2+H2O+CO2
Gener
alobser
vat
i
onsont
heef
f
ect
sofconcent
r
at
i
on:
Thevi
negarr
eact
sl
ongeronmor
et
abl
espoonsofbaki
ngsoda;hence,hi
gherr
eact
ant
concent
r
at
i
onmeanshi
gherr
eact
i
onr
at
e.Thi
soccur
sbecausemor
eoft
her
eact
i
ngmol
ec
ul
es
ori
onsar
epr
esentt
of
or
mt
her
eact
i
onpr
oduct
s.
Ef
f
ect
sofEnzymeCat
al
yst
s(
Decomposi
t
i
onofHydr
ogenPer
oxi
de)
Pot
at
o
Obser
vat
i
ons
Cooked
Thehydr
ogenper
oxi
der
emai
nscl
ear
.
Fr
esh
Bubbl
eswer
ef
or
medwhent
hehydr
ogen
per
oxi
dewasadded.
Enzymer
esponsi
bl
ef
ort
hedecomposi
t
i
onof
Hydr
ogenper
oxi
de
Cat
al
ase
Bal
ancedchemi
cal
equat
i
onf
ort
he
decomposi
t
i
onofhydr
ogenper
oxi
de
2H2O2→ 2H2O+O2