Rate equations Flashcards

1
Q

Describe the three concentration time graphs graphs for different order reactants

A

0 order - straight
first and second order curved hard to distinguishWH

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2
Q

What type of graph should be plotted to discern the order of a reactant

A

Rate- concentrationW

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3
Q

What does the rate-concentration graph look like for a first order reactant

A

straight flat line

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4
Q

What does the rate-concentration graph look like for a second order reactant

A

Directly proportional straight line increase

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5
Q

What does the rate-concentration graph look like for a third order reactant

A

Exponential increase

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6
Q

Which rate is used to plot rate graphs

A

Initial rate at t=0

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7
Q

State the arrhenius equation

A

k= A e^-Ea/RT

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8
Q

define every part of the arrhenius equation

A

k - constant
A - pre exponsnetial facotr
Ea activation energy
R gas constant
T temp in kelvin

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9
Q

ln equation of arrhenuus

A

lnk= -Ea/RT +lnA

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10
Q

ln arrhenius for EA

A

Ea = (lnA-lnK)RT

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11
Q

What two values do you plot for an arrhenius plot

A

1/T x
lnK on y

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12
Q

What values can you obtain from an arrhenius plot

A

lnA - from y intercept
gradient = -Ea/R

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