Physical Chemistry

– In this subject, we will discuss the Identification of Isotopes by Aston’s Mass Spectrograph and Dempster’s Mass Spectrograph Identification of Isotopes – The positive rays produced in a discharge tube consist of nuclei of atoms. – The deflection of positive rays in an electric and magnetic field is proportional …

– In this subject, we will discuss the Isotopes: Definition, representation, Examples What are Isotopes? – Contrary to Dalton’s Atomic theory, all atoms of a given element are not necessarily identical. – Most elements are composed of two or more types of atoms mixed in a fixed proportion. – The …

– In this subject, we will discuss Pressure-volume work – P-V work – the First Law of Thermodynamics Work – Work in thermodynamics is defined as in classical mechanics. – When part of the surroundings exerts a macroscopically measurable force F on matter in the system while this matter moves …

– In this subject, we will discuss The Zeroth Law of Thermodynamics Introduction to Zeroth Law of Thermodynamics – Thermodynamics is based on a few statements called laws that have broad applications to physical and chemical systems. – As simple as these laws are, it took many years of observation …

– In this subject, we will discuss the System, Surroundings, and State: Definition – Overview What are the System and  Surroundings? – Imagine you have a container holding some material of interest to you, as in the Figure below. – The container does a good job of separating the material …