Write the formula for the rate of reaction $R \to P$ for zero-order and first-order reactions.

(N/A) For a reaction $R \to P$:
$1$. For a zero-order reaction,the rate is independent of the concentration of the reactant. The rate law is given by: $\text{Rate} = k[R]^0 = k$.
$2$. For a first-order reaction,the rate is directly proportional to the concentration of the reactant. The rate law is given by: $\text{Rate} = k[R]^1 = k[R]$.