Can chemical kinetics predict the feasibility of a reaction?

It’s of great importance to know the feasibility, extent and rate of a chemical reaction to use it for our benefits. Feasibility of a chemical reaction can be predicted by thermodynamics while its extent can be predicted by chemical equilibrium. Chemical kinetics tells us about the rate of reaction. …

What is feasibility of chemical reaction?

For a reaction to be feasible at a given temperature, it must happen spontaneously, which means no extra energy needs to be put in for the reaction to occur. To find out whether a reaction is feasible, you can calculate the Gibbs free energy change (ΔG) for that particular reaction.

What does kinetics determine about a chemical reaction?

Chemical kinetics includes investigations of how experimental conditions influence the speed of a chemical reaction and yield information about the reaction’s mechanism and transition states, as well as the construction of mathematical models that also can describe the characteristics of a chemical reaction.

What is the difference between reaction rate and chemical kinetics?

A reaction’s rate can be determined by measuring the changes in concentration over time. Chemical kinetics is the part of physical chemistry that concerns how rates of chemical reactions are measured and predicted, and how reaction-rate data can be used to deduce probable reaction mechanisms.

What are reaction rates dependent on?

Reactant concentration, the physical state of the reactants, and surface area, temperature, and the presence of a catalyst are the four main factors that affect reaction rate.

What unit is rate constant k?

1/
The units of the rate constant, k, depend on the overall reaction order. The units of k for a zero-order reaction are M/s, the units of k for a first-order reaction are 1/s, and the units of k for a second-order reaction are 1/(M·s).

How is Gibbs useful in predicting the feasibility of a process?

Gibbs equation helps us to predict the spontaneity of reaction on the basis of enthalpy and entropy values directly. When the reaction is exothermic, enthalpy of the system is negative making Gibbs free energy negative. Hence, we can say that all exothermic reactions are spontaneous.

What is feasibility and spontaneity?

The words spontaneous and feasible are used interchangeably in several boards. Both are used to mean thermodynamically possible. Feasible means that there are no theoretical objections to the reaction postulated. Spontaneous means that the thermodynamics of the proposed process offer no obstacle.

Which factor affects the rate of a chemical reaction?

Why is rate of reaction exponential?

The overall order of a reaction is determined by adding up the exponents. I.e. If a=1 and b=2, the reaction is third order overall. Reactions in which the rate varies with concentration of a single species, and the change in concentration is exponential, so that a plot of ln(concentration) v.

What is chemical kinetics and chemical equilibrium?

Chemical kinetics – the study of the rates of chemical processes. Equilibrium – the condition of a system in which competing influences. are balanced.

How is chemical equilibrium related to Kinetics?

The dynamic nature of chemical equilibrium means that both forward and reverse reactions can be taking place at significant – even high – rates, but since these rates are equal, no change in concentration is observed over time. …