Stabilitas Obat: Waktu Paruh, Orde Reaksi, Shelf Life (Umur Simpan)

Introduction to the concept of reaction rate and half-life in pharmacokinetics, covering topics like stability of drugs, physical and chemical changes, dissolution rate, absorption, distribution, and elimination processes.

Explanation of reaction rate as the change in concentration of reactants or products per unit time, introducing the concept of rate constant, order of reaction, and stoichiometry.

Discussing the order of reaction and rate laws, including the dependence of rate on concentration of reactants, determination through experiments, and examples of first-order and second-order reactions.

Explaining the concept of half-life in zero order reactions where the concentration decreases by half from the initial concentration, and deriving the formula for calculating half-life.

Guidance on calculating half-life in zero-order reactions with examples and formulas to determine the time required for the concentration to reduce by half.

Explaining the calculation and interpretation of T90, the time required for the concentration to reach 90% of its initial value, with examples and formulae for determining shelf-life.

Exploring second-order reactions involving two reactants and explaining the half-life computation for such reactions.

Demonstrating how to calculate the time required to reach 90% of the initial concentration in second-order reactions, using formulae and examples.

Solve the given second order reaction problem where half the value of the reaction is known to be 8.24 L/mol/min. Calculate and provide your answer in the YouTube comment section below.

Try to solve the second order reaction problem and find the solution independently. Once you have the answer, write it in the comment section below the video.

After obtaining the solution to the problem, submit your answer in the comment section for review. Your effort will be acknowledged and saved for future reference. Thank you and peace be upon you.