Class 11

The velocity of an object is the rate of change of the object’s position with respect to the reference frame  and is a function of time. Velocity corresponds to an indicator of the speed and direction of movement of an object (e.g. 70 km/h north). Velocity is a basic concept of kinematics and is a […]

Half-life formulas are a decent metric to calculate the half-life of radioactive elements. The need for this formula occurred when the slowed rate of decay was found during the years. When an element is reduced, its decay rate also decreases, which might be challenging to calculate after some point. In simple words, the half-life is

Some isotopes are radioactive and decay by a specific type of emission, whereas others are stable indefinitely. The amount of radioactivity diminishes as time passes because less and less of the radioactive isotope is present.  The half-life is a fascinating and useful aspect of radioactive decay. In these half-life definition notes, we will learn the

Chemistry, by its nature, is all about different reactions and changes. In chemistry, various chemical reactions occur, which are studied with the help of its branch called Chemical Kinetics. The word kinetics is derived from the Greek word ‘kinesis’ which means movement. Chemical kinetics is all about the rate of reactions and the speed of

In any chemical reaction, the reaction rate is the rate at which the concentration rises or falls or the rate at which the mass changes. The reaction rate refers to the rate of reaction in a chemical reaction. The reaction rate of a chemical reaction is defined as the rate of change in the mass

Differential and integral forms of zero-order reaction are the mathematical expressions derived from differential rate law to study the kinetics of reactions; for instance, how the reactions are reacting and the rate and time period of reactions. Differential and integral forms can be derived for any order of the reactions. Zero order reactions Zero order

Introduction Depending on the sign of the displacement, the average velocity can be either positive or negative in nature.  The metric unit for average velocity is metres per second (m/s or ms-1) in the International System of Units. Identifying the Average Velocity When calculating the average velocity, we must divide the total displacement by the

In any chemical reaction, the reaction rate is the rate at which the concentration rises or falls or the rate at which mass changes. The reaction rate refers to the rate of reaction in a chemical reaction. The reaction rate of a chemical reaction is defined as the rate of change in the mass of