For a homogeneous reaction of order n, the unit of rate constant, k is ____(a) conc^n-1(b) \(\frac{conc^{-1}}{time} \)(c) \(\frac{conc^{-1}}{time^{1-n}} \)(d) \(\frac{conc^{1-n}}{time^{-1}} \)I had been asked this question in examination.Enquiry is from Reaction Rates topic in portion Basic Concepts of Chemical Reaction Engineering

For a homogeneous reaction of order n, the unit of rate constant, k is

1.	For a homogeneous reaction of order n, the unit of rate constant, k is ____(a) conc^n-1(b) \(\frac{conc^{-1}}{time} \)(c) \(\frac{conc^{-1}}{time^{1-n}} \)(d) \(\frac{conc^{1-n}}{time^{-1}} \)I had been asked this question in examination.Enquiry is from Reaction Rates topic in portion Basic Concepts of Chemical Reaction Engineering
Answer» Correct OPTION is (d) \(\frac{conc^{1-n}}{time^{-1}} \) To explain I would SAY: For any ORDER n, (-RA) = kCA^n \(\frac{mol}{m^3×s} = k.(\frac{mol}{m^3})^n \) Hence the unit of k is \(\frac{conc^{1-n}}{time^{-1}}. \)

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