Question

What is R in the equation k = Ae^-Ea/RT?

(a) R = 8.314 J K^-1 mol^-1

(b) R = 3.184 J K^-1 mol^-1

(c) R = 4.318 J K^-1 mol^-1

(d) R = 1.438 J K^-1 mol^-1

The question was posed to me at a job interview.

This is a very interesting question from Chemical Kinetics topic in division Chemical Kinetics of Chemistry – Class 12

Answer 1

Right answer is (a) R = 8.314 J K^-1 mol^-1

The explanation is: Saline medium has extra salts such as sodium chloride dissolved in water. It has a greater concentration of electrolyte than ordinary medium. The ions present will favour the formation of more electrochemical cells and favour the transfer of hydrogen ions and will thus promote rusting or corrosion.