# How do you describe a first order reaction?

## How do you describe a first order reaction?

A first-order reaction can be defined as a chemical reaction in which the reaction rate is linearly dependent on the concentration of only one reactant. In other words, a first-order reaction is a chemical reaction in which the rate varies based on the changes in the concentration of only one of the reactants.

What is the first order of kinetics?

An order of chemical reaction in which the rate of the reaction depends on the concentration of only one reactant, and is proportional to the amount of the reactant. It may be represented by the equation, rate = kA, where k is the reaction rate constant, and A is the concentration of the reactant.

### What do you mean by first order reaction give example?

: a chemical reaction in which the rate of reaction is directly proportional to the concentration of the reacting substance — compare order of a reaction.

What is an example of a second order reaction?

Reactions in which reactants are identical and form a product can also be second order reactions. Many reactions such as decomposition of nitrogen dioxide, alkaline hydrolysis of ethyl acetate, decomposition of hydrogen iodide, formation of double stranded DNA from two strands etc.

## What is the graph of first order reaction?

For a first-order reaction, a plot of the natural logarithm of the concentration of a reactant versus time is a straight line with a slope of −k. For a second-order reaction, a plot of the inverse of the concentration of a reactant versus time is a straight line with a slope of k.

What is first order kinetics and zero order kinetics?

First order kinetics is a concentration-dependent process (i.e. the higher the concentration, the faster the clearance), whereas zero order elimination rate is independent of concentration.

### What do you mean by first reaction?

A first-order reaction is a reaction that proceeds at a rate that depends linearly on only one reactant concentration.

What is order of reaction explain with an example?

The order of reaction can be defined as the power dependence of rate on the concentration of all reactants. For example, the rate of a first-order reaction is dependent solely on the concentration of one species in the reaction.

## Which is the best description of first order kinetics?

First order kinetics The process that is directly proportional to the drug concentration available at that time. • Linear kinetic process • Concentration dependent process • Rate of process increase linearly with increase in drug concentration • Never comes to an end

How are first order kinetics used in drug metabolism?

Drug metabolism First order kinetics Constant fraction per unit time is metabolized Rate increases if drug conc. increases 4. General expression • dC/dt = – kC Here , dC = The change in concentration dt = Time interval dC/dt = The velocity of the reaction k = Rate constant C = Concentration

### Which is the best example of the Order of adjectives?

Order of adjectives – examples Determiner Quantity or number Quality or opinion Size Purpose or qualifier A beautiful sports The three beautiful little An amazing

How to calculate the concentration of a first order reaction?

Graphical Representation of a First-Order Reaction The concentration v/s time graph for a first-order reaction is provided below. For first-order reactions, the equation ln [A] = -kt + ln [A] 0 is similar to that of a straight line (y = mx + c) with slope -k. This line can be graphically plotted as follows.

10/06/2019