1. Compiler : vocational high school of country 7 Bandung
Identifies Factor Factor Influencing Rate Of Reaction For Technological Chemistry And Agriculture
Class XI Semester 4
Compiler : vocational high school of country 7 Bandung

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Elementary Interest
Determines rate of reaction and reaction order
Explains factor factor influencing rate of reaction
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Purpose Of Learning
Student can explain rate of reaction concept
Student can explain concept the hammering theory
Student can explain factor factor influencing rate of reaction
Student can write down rate equation reaction and order of reaction is explained according to rule
Student can calculate reaction rate constant
Student can determine storey ( order) reaction, rate equation of reaction, and rate constant reaction of based on data result of attempt
Student can calculate rate of reaction based on data result of attempt
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4. Rate Of Reaction Concept
Rate of reaction defined as :
Change of concentration of reactant or result of reaction of every one set of time
Concentration applied is molarity ( M) or mole per litre ( mole. L⁻¹)
Set of time could be in the form of second, minute, hour(clock, day or year but used occasionally second
So rate of reaction has set of mole per litre per second ( mole. L⁻¹.s⁻¹ or Ms⁻¹)
Along with increasing of reaction time, hence reactant matter amounts would fewer, while product more and more many, so that :
Rate of reaction expressed as speed of the lessen of reactant or fast increasing of product.
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Continuation
Rate of reaction picture A becomes B, shown with the lessen of molecule A and increasing of molecule B in one set of time.
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Continuation
Graph is upper able to be written as equation reaction of as follows :
a A → b B
V = - d( A ) = + d( B )
t t
Minus sign (-) shows concentration of reactant more and more decreases
Positive sign (+) shows concentration of product more and more increases
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The Hammering Theory
Theoritical of hammering reaction of taking place as result of hammering between reactant particles
Not every hammering yields reaction, but only hammering between effective particles
Only having enough energy and direction of correct hammering yielding reaction
Conditions the happening of a reaction :
1. Effective hammering, that is hammering yielding reaction
If reactant molecule moving direction, stands a chance is big there will be hammering one another, either with the same molecule and also differs in the conclusive.
Hammering of tying in reactant molecule and then forms new tying which yields molecule result of reaction.
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Continuation
2. Hammering Energy that is Enough
Minimum energy which must be owned by reactant particle causing yields effective hammering called as energy activation ( Ea = activation energy)
Hammering with energy that is conclusive enough of tying and forming of new tying
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Continuation
exothermic activation energy
endothermic activation energy
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10. Factor Influencing Rate of reaction
Temperature
Excelsior temperatur,makin kinetik head , movement of molecule more and more quickly so that opportunity the happening of hammering would be more and reaction of taking place is quicker
Concentration
Of More and more big concentration , number of molecules more and more many , more and more big opportunities the happening of hammering and reaction of more and more quickly
Pengadukan / mechanic
Waters down event of hammering between molecules causing reaction easy to happened.
Matter surface area
More and more matter surface area more and more many opportunities the happening of hammering causing reaction of taking place is quicker
Catalyst
existence of a matter which when interaction with reaktan will give new line which its(the activation energy lower than initialy, causing quicker reaction happened.
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11. Rate Equation of Reaction
To react :
a A + b B → c C + d D
applies reaction rate law = k [A]m [B]n
With :
k = rate constant, influenced temperature and catalyst ( if is exist)
m = order ( storey) reaction of to reactant A
nitrogen = order ( storey) reaction of to reactant B
[ A], [ B] = concentration of in molarity
Rank m and n determined from experiment data
Ever greater the price of k reaction of will take place is quicker
Increase of temperature and usage of catalyst generally enlarges the price of k
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Reaction Order
Determines order reaction of is one of way of approximating how far concentration of reactant matter influences certain rate of reaction
Order reaction or order of reaction to a component is rank from concentration of the component in reaction rate law
Example : v = k [A]m [B]n
M= order reaction of to A
n = order reaction of to B
Orde total = m + n
change of concentration of is a, and change of rate of reaction is b hence applying :
ax= b
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13. Ending "THANK" Compiler : Rochim Muliawan,S.Pd Dra Hj. Nunun Kusworini
Oktaviani Budiarti,SPd
Vocational high school of country 7 Bandung
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