Question

The given graph is a representation of kinetics of a reaction.

The y and x axes for zero and first order reactions respectively are

Options

• zero order (y = concentration and x = time) 
  first order (y = rate constant and x = concentration)

• zero order (y = rate and x = concentration)
  first order (y = t_1/2 and x = concentration)

• zero order (y = rate and x = concentration)
  first order (y = rate and x = t_1/2)

• zero order (y = concentration and x = time)
  first order (y = t_1/2 and x = concentration)

Answer 1

Zero order (y = rate and x = concentration)
First order (y = t_1/2 and x = concentration)

Explanation:

For zero order, rate vs concentration gives a horizontal line

For a first order, t_1/2 is independent of concentration, so y = t_1/2 and x = concentration also gives a horizontal line.