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yaroslaw [1]
3 years ago
15

Write a hypothesis to predict how reaction rate will change when temperature changes. For example: “ If i heat a reaction, then

the rate will...,”
Chemistry
1 answer:
cricket20 [7]3 years ago
8 0
If I heat a reaction then the rate will increase because the higher the temperature the faster the reaction.

Please vote my answer brainliest. thanks!
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How are natural polymers and synthetic polymers similar?
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3 years ago
Anything that has mass and takes up space
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6 0
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Read 2 more answers
A reaction is followed and found to have a rate constant of 3.36 × 104 m-1s-1 at 344 k and a rate constant of 7.69 m-1s-1 at 219
g100num [7]

The relation between rate constants at different temperatures, temperature and activation energy is known as Arrhenius equation

<u>Arrhenius equation</u>

K=Ae^-{\frac{Ea}{RT} }

For two temperatures

Ea=R(\frac{ln\frac{k1}{k1} }{(\frac{1}{T1})-(\frac{1}{T2})})

Where

Ea = ? = activation energy

k1 = 3.36 × 10⁴

T1=344 k

k2=7.69

T2=219K

R= gas constant = 8.314 J /molK

Putting values

Ea= (8.314)(\frac{ln(\frac{7.69}{33600})}{(\frac{1}{344})(\frac{1}{219})}

Ea = (-69.69)/(-0.00166) = 41981.93 J/mol

Or

Activation energy is 42.0 kJ /mol

3 0
2 years ago
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