Question

which represents a zero order reaction?

Answer 1

Zero-Order Reactions. In some reactions, the rate is apparently independent of the reactant concentration. The rates of these zero-order reactions do not vary with increasing nor decreasing reactants concentrations. This means that the rate of the reaction is equal to the rate constant , of that reaction.

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Answer 2

The reaction rate is a constant for a zero order reaction. When complete consumption of the limiting reactant, the abrupt reaction stops.

Particularly, in zero order reaction, the "rate of reaction does not depend" on the "concentration of reactants".

The following mathematical expression represents zero order reaction.

$\frac{-\mathrm{dc}}{\mathrm{dt}}=\mathrm{k}_{\mathrm{o}}$

When we plot, concentration versus time, we will obtain a straight line. The k is equal to negative slope.

The "reverse Haber process" is an example zero order reaction.