Question

write the unit of velocity constant for first, second and third order reaction​

Answer 1

Answer:

For a reaction having order equal to 3/2 , the units for rate constant are sec^-1 .

Answer 2

Answer:

k is the first-order rate constant, which has units of 1/s. The method of determining the order of a reaction is known as the method of initial rates. The overall order of a reaction is the sum of all the exponents of the concentration terms in the rate equation.

For the units of the reaction rate to be moles per liter per second (M/s), the units of a second-order rate constant must be the inverse (M−1·s−1). Because the units of molarity are expressed as mol/L, the unit of the rate constant can also be written as L(mol·s).