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Enthalpy Of Different Processes

Post author By Hemant More
Post date January 20, 2020
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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 […]

Tags Adiabatic process, Bond energy, Bond enthalpy, Chemistry, Constant pressure process, Constant temperature process, Constant volume process, Crystal lattice energy, Cyclic process, Endothermic reaction, Enthalpy of atomization, Enthalpy of combustion, Enthalpy of condensation, Enthalpy of dissociation, Enthalpy of formation, Enthalpy of freezing, Enthalpy of fusion, Enthalpy of hydration, Enthalpy of ionization, Enthalpy of neutralization, Enthalpy of reaction, Enthalpy of solution, Enthalpy of sublimation, Enthalpy of vapourization, Exothermic reaction, Free expansion, Fusion, Heat of reaction, Irreversible process, Isobaric process, Isochoric process, Isothermal process, Pressure volume work, Process, Reversible, Reversible process, Sign convention, State of a substance, Sublimation, Thermochemical equation, vapourization, work done in cyclic process

Physical Chemistry

Heat of Reaction

Science > Chemistry > Chemical Thermodynamics and Energetics > Heat of Reaction The branch of chemistry which deals with the quantitative study of thermal or heat changes in various chemical reactions is known as thermochemistry. In this article, We shall discuss very important concept of chemistry i.e. heat of reaction. Thermochemical Equation: An equation which […]

Physical Chemistry

Enthalpy of a System

Science > Chemistry > Chemical Thermodynamics and Energetics > Enthalpy of a System The enthalpy of system is defined as the sum of the internal energy of the system and energy that arises due to pressure and volume. It is denoted by letter H. Mathematically, H = U + PV Where, H = Enthalpy U […]

Tags Adiabatic process, Change in enthalpy, Chemistry, Constant pressure process, Constant temperature process, Constant volume process, Cyclic process, Enthalpy, Enthalpy of system, Free expansion, Irreversible process, Isobaric process, Isochoric process, Isothermal process, Pressure volume work, Process, Reversible process, Sign convention, work done in cyclic process

Physical Chemistry

Laws of Thermodynamics

Science > Chemistry > Chemical Thermodynamics and Energetics > First Law of Thermodynamics In this article, we shall study the first law of thermodynamics and its application to different chemical processes. Zeroth Law of Thermodynamics: Statement: If two bodies (say A and B) are in thermal equilibrium of the third body (say C) then body […]

Tags Adiabatic process, Chemistry, Constant pressure process, Constant temperature process, Constant volume process, Cyclic process, First law of thermodynamics, Free expansion, Irreversible process, Isobaric process, Isochoric process, Isothermal process, Pressure volume work, Process, Reversible process, Secpond law of thermodynamics, Sign convention, work done in cyclic process, Zeroth law of thermodynamics

Physical Chemistry

Concept of Maximum Work

Science > Chemistry > Chemical Thermodynamics and Energetics > Concept of Maximum Work According to the first law of thermodynamics, ΔU = q + W In an isothermal process, ΔU = 0, ∴ q = – W Therefore, all the heat absorbed by the system is utilized to do work. […]

Physical Chemistry

Work Done in Chemical Process

Post author By Hemant More
Post date January 17, 2020
1 Comment on Work Done in Chemical Process

Science > Chemistry > Chemical Thermodynamics and Energetics > Work Done in Chemical Process Pressure Volume Work: Consider an ideal gas having definite mass (say n moles) be enclosed in a cylinder fitted with weightless, frictionless, tightly fitted, movable piston. Let ‘A’ be the area of the cross-section of the cylinder. Let the gas expand […]

Tags Adiabatic process, Chemistry, Constant pressure process, Constant temperature process, Constant volume process, Cyclic process, Free expansion, Irreversible process, Isobaric process, Isochoric process, Isothermal process, Pressure volume work, Process, Reversible process, Sign convention, work done in cyclic process

Physics

Kirchhoff’s Laws

Science > Physics > Current Electricity > Kirchhoff’s Laws In this article, we shall study Kirchhoff’s laws, construction, working and uses of Wheatstone’s metre bridge. There are two Kirchhoff’s laws viz: current law or junction law and voltage law or mesh law. Kirchhoff’s Current Law or Kirchhoff’s Junction Law: Statement: In an electric network, the algebraic sum of […]

Tags Balanced metre bridge, balanced Wheatstone's network, Balancing length, Current Electricity, Current law, Junction law, Mesh law, Null point, Sign convention, Voltage law, Wheatstone's metre bridge, Wheatstone's network