General Introduction: Importance and scope of Chemistry, Nature of matter, laws of chemical combination, Dalton's atomic theory: concept of elements, atoms and molecules, atomic and molecular masses, ...

May 6, 2002 -- There's something in the air and while it may not be love, some say it's the next best thing -- negative ions. Negative ions are odorless, tasteless, and invisible molecules that we ...

This is a preview. Log in through your library . Abstract A complete analysis of the structures of all types of ionization front is given, together with computed examples. It is shown that the ...

Researchers have for the first time measured the first ionization energy of lawrencium, the last of the actinides, validating predictions of the element’s electronic structure (Nature 2015, DOI: ...

The 2025 JEE Main session 1 is planned to be conducted on 22, 23, 24, 28, 29, and 30 January. The National Testing Agency (NTA) has already released the 2025 JEE Main ...

Enthalpy of formation, also known as the heat of formation, is a measure of the energy change that occurs when one mole of a compound is formed from its constituent elements in their standard states.

Molar enthalpy, denoted as ΔH_m, is an important concept in thermodynamics and chemistry. It refers to the heat absorbed or released during a chemical reaction or phase transition per mole of ...

Abstract: In a seed-free inert-gas disk-shaped magnetohydrodynamic (MHD) generator, the effect of the self-excited Joule heating in the nozzle region on the generator performance has been examined ...

To continue reading this content, please enable JavaScript in your browser settings and refresh this page. Preview this article 1 min Persistent droughts are sapping ...