What volume will 1.27 moles of helium gas occupy at 80.00 °C and 1.00 atm?
1 answer:
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Answer:
The dimerization of butadiene to 4-vinylcyclohexene folows second order kinetics and its rate law will be given by :
Explanation:
The rate of the reaction ;
As given in the question , that graph of time verses was linear but plots of
or
was curved.
Generally:
Graph of time verses for zero order reaction is linear with negative slope.
Graph of time verses for secon order reaction is linear with negative slope.
Graph of time verses for secon order reaction is linear with positive slope.
So, the dimerization of butadiene to 4-vinylcyclohexene folows second order kinetics and its rate law will be given by :
Answer:
<u><em> 15.9 KJ/mol</em></u>
Explanation:
Given data:
Temperature = T1 = 307 K
Temperature = T2 = 343 K
Gas constant R= 8.314 J/(mol • K)
rate constant = k2/K1 = 89
To find:
Activation energy (in kJ/mol) = Ea = ?
Formula:
The Arrhenius equation gives the relation between temperature and reaction rates:
here, in this equation
k = the rate constant
Ea = the activation energy
R = the Universal Gas Constant
T= the temperature
Solution:
ln 89 = Ea / 8.314 J/mol.K x (0.0325 - 0.00291)
ln 89 = Ea / 8.314 J/mol.K x (2.95 x 10^2 )
4.488 = Ea / 8.314 J/mol.K x (2.95 x 10^2)
Ea = 4.488 x (2.95 x 10^2) / 8.314 J/mol.K
= 0.1324 / 8.314
Ea = 0.0159
Ea = 1.59 x 10^2 J/mol
= 15.9 KJ/mol