Category: Facts

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 […]

Physics

Numerical Problems on Change in Fringe Width

Post author By Hemant More
Post date January 20, 2020
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Science > Physics > Interference of Light > Numerical Problems on Fringe Width In this article, we shall study numerical problems based on Young’s experiment and biprism experiment to find the fringe width of the interference pattern and to find the wavelength of light used. Example – 12: In a biprism experiment, the slit is […]

Physics

Numerical Problems on Fringe Width

Post author By Hemant More
Post date January 20, 2020
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Physics

Concept of Fringe Width and Path Difference

Post author By Hemant More
Post date January 20, 2020
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Science > Physics > Interference of Light > Concept of Fringe Width and Path Difference In this article, we shall study Young’s double-slit experiment to demonstrate interference of light and also derive expressions for path difference and fringe width. Young’s Double Slit Experiment: The Young’s double-slit experimental arrangement consists of a pinhole ‘S’ punched on […]

Physics

Numerical Problems on Formation of Bright and Dark Band

Post author By Hemant More
Post date January 19, 2020
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Science > Physics > Interference of Light > Numerical Problems on Bright and Dark Bands In this article we shall study problems, to determine the nature of interference at a point i.e. to decide whether the point is a bright point or dark point. Example – 01: The optical path difference between two identical waves […]

Physics

Interference of Light

Science > Physics > Interference of Light > Interference of Light In this article, we shall study the phenomenon of interference of light, conditions for constructive and destructive interference. Terminology: Constructive Interference of Light: When two light waves of same frequency arriving at a point, meet each other in the same phase i.e. the crest […]

Physics

Sound Waves

Science > Physics > Wave Motion > Sound Waves In this article, we shall study sound waves and their nature. Similarly, we shall derive the velocity of sound in air and studying the factors affecting the velocity of sound in air. Longitudinal Nature of Sound waves: Sound waves are the longitudinal waves. It can be […]

Physics

Numerical Problems on Dopler Effect

Post author By Hemant More
Post date January 18, 2020
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Science > Physics > Wave Motion > Numerical Problems on Dopler Effect In this article, we shall study to calculate the apparent frequency of a source using the Doppler effect. Example – 01: A whistle of frequency 420 Hz is sounded on the roadside. Find the apparent frequency of the whistle for a motorist driving […]

Physics

Doppler Effect

Science > Physics > Wave Motion > Doppler Effect In this article, we shall study the Doppler effect in case of sound waves and a brief idea of the Doppler effect in case of light. Doppler Effect: The apparent change in the frequency of the sound heard by an observer, due to relative motion between […]