Mapdeb Organic Chemistry Loudon Roberts&Company; Publishers presented by Sapling

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Mapdeb Organic Chemistry Loudon Roberts&Company; Publishers presented by Sapling Leaming The standard free energy of actlvation of one reaction A is 90.20 kJ mor (21.56 kcal mor). The standard free 298 K and 1 M concentration. of activation of another reaction B is 71.20 kJ mor (17.02 kcal mol) Assume a temperature of By what factor is one reaction faster than the other? Number 210 Which reaction is faster? O Reaction A is faster O Reaction B is faster. O Cannot be determined There is a hint available! View the hint by clicking on the bottom divider bar on the divider bar again to hide the hint Close O Previous ® Give Up & View Solution Check Answer e Next Fxit- V Hint

Explanation / Answer

The activation energy of A is Ea = 90.2 kJ/mol,  

The activation energy of B is Eb = 71.20 kJ/mol

Now, Ea/Eb = 90.2/71.20 = 1.27 or Ea = 1.27 Eb

Hence for A, the activation energy is more and hence the reaction will be slower compared to B by a factor of 1.27.

Reaction B is faster than reaction A.

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