Question

Explain how knowing the order of a reaction (based on its Rate Law) gives the ability to know the effect of that reactant on the rate of the reaction. Make sure to use zero order, 1st order, and 2nd order effects in your essay.

Answer #1

**Order of the reaction has a direct relation to effect of
reactant.**

**For Zero order:**

**rate = K*[A]^0**

**rate =K**

**since rate is independent of concentration of reactant,
reactant doesn't effect rate of reaction.**

**For 1st order:**

**rate = k[A]^1**

**rate= k[A]**

**Here if we double the concentration of reactant, rate
will be doubled. Its direct relation between rate and
concentration.**

**For 2nd order:**

**rate = k[A]^2**

**Here if we double the concentration of reactant, rate
will become 4 times. Its square relation between rate and
concentration.**

**So order help us understand effect of reactant on
rate**

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straight line,y=mx+b.
Order
Integrated Rate Law
Graph
Slope
0
[A]=−kt+[A]0
[A] vs. t
−k
1
ln[A]=−kt+ln[A]0
ln[A] vs. t
−k
2
1[A]= kt+1[A]0
1[A] vs. t
k
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Express your answer with...

The integrated rate laws for zero-, first-, and second-order
reaction may be arranged such that they resemble the equation for a
straight line,y=mx+b.
Order
Integrated Rate Law
Graph
Slope
0
[A]=−kt+[A]0
[A] vs. t
−k
1
ln[A]=−kt+ln[A]0
ln[A] vs. t
−k
2
1[A]= kt+1[A]0
1[A] vs. t
k
Part A
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8.00×10−2M after 200 s and
2.50×10−2Mafter 390 s . What is the rate
constant for this reaction?
Express your answer with the...

The integrated rate laws for zero-, first-, and second-order
reaction may be arranged such that they resemble the equation for a
straight line,y=mx+b.
Order
Integrated Rate Law
Graph
Slope
0
[A]=−kt+[A]0
[A] vs. t
−k
1
ln[A]=−kt+ln[A]0
ln[A] vs. t
−k
2
1[A]= kt+1[A]0
1[A] vs. t
k
------------
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----------
Part B...

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reaction may be arranged such that they resemble the equation for a
straight line,y=mx+b.
Order
Integrated Rate Law
Graph
Slope
0
[A]=−kt+[A]0
[A] vs. t
−k
1
ln[A]=−kt+ln[A]0
ln[A] vs. t
−k
2
1[A]= kt+1[A]0
1[A] vs. t
k
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The reactant concentration in a zero-order reaction was
5.00×10−2M after 200 s and
2.50×10−2M after 310 s . What is the rate
constant for this reaction?
Express your answer with...

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