Print Calculator Periodic Table phnt stion 12 of 19 rganic Chemistry Roberts & C

Question

Print Calculator Periodic Table phnt stion 12 of 19 rganic Chemistry Roberts & Company Publisher presented by Saping The standard free energy of activation of one reaction Ais 92.50 kJ mor (22.11 kcal molt). The standard free y of activation of another reaction B is 70.40 kJ mol 1 (16.83 kcal mort. Assume a temperature of 298 K and 1 M concentration. By what factor is one reaction faster than the other? Number Which reaction is faster? O Reaction A is faster. O Reaction B is faster. O cannot be determined

Explanation / Answer

k2/k1 = ( exp ( E1-E2)/RT) = exp( 92.5-70.4) x 1000/8.314x298) = 7480 times

reaction B is faster

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