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Physical Chemistry

Change of State of a Substance

Science > Chemistry > States of Matter > Change of State of a Substance In this article, we shall study a change in the state of a substance. Melting (Solid → Liquid): The process of change of solid substance into its liquid state is called melting or fusion. The constant temperature at which the solid […]

Categories
Physical Chemistry

Enthalpy Of Different Processes

Science > Chemistry > Chemical Thermodynamics and Energetics > Heat of Reaction Of Different Processes In this article, we shall study change in enthalpy for different chemical processes. Enthalpy of Formation (ΔfH° or ΔformationH°): The change in enthalpy of a chemical reaction at a given temperature and pressure, when one mole of the substance is formed […]