Question

A first-order reaction is 50% complete in 20 mins at 27 degrees, and in 5 mins at _______. The energy of activation of the reaction is:

a. 7 degrees
b. 17 degrees
c. 37 degrees
d. 47 degrees

Answer 1

A first-order reaction is characterized by a rate that depends on the concentration of a single reactant raised to the power of 1. The half-life of a first-order reaction can be determined using the equation ln(2)/k. The specific temperature at which the reaction is 50% complete in 5 minutes cannot be determined without the activation energy.

Step-by-step explanation:

A first-order reaction is characterized by a rate that depends on the concentration of a single reactant raised to the power of 1. The half-life of a first-order reaction can be determined by the equation ln(2)/k, where k is the rate constant. Using this formula, we can determine the time it takes for the reaction to be 50% complete at a different temperature. Since the activation energy is not provided, we cannot determine the specific temperature at which the reaction is 50% complete in 5 minutes. As for the options given, none of the provided temperatures are the correct answer based on the information given.