question_answer

If the concentration is expressed in moles per litre, the unit of the rate constant for a first order reaction is [MNR 1986; MP PET 1994, 2000, 01;Bihar MEE 1996; CPMT 1997; MP PMT 1995, 96, 99;AFMC 2002]

A)                 mole litre \[^{-1}\,{{\sec }^{-1}}\]            

B)                 mole litre\[^{-1}\]

C)                 \[{{\sec }^{-1}}\]             

D)                 mole\[^{-1}\] litre\[^{-1}\] sec\[^{-1}\]