Question

What is cohesive force?



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Answer 1

$\small\text{\color{blue}{\underline{Fórce of àttraction between molecules}}} \\ \small\text{\color{blue}{\underline{of \: \: \: \: the \: \: \: sàme \: \: \: \: substance \: \: \: is \: \: \: called}}} \\ \small\text{\color{blue}{\underline{cóhesive fórce. \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }}}$

$\small\text{\color{brown}{\underline{The \: term \: "cóhesive \: fórces" \: \: is \: a \: \: géneric}}} \\ \small\text{\color{brown}{\underline{term \: \: \: for \: \: \: the \: \: cóllective \: \: \: \: intermólecular}}} \\ \small\text{\color{brown}{\underline{fórces (e.g., hydrógen bónding and vàn dér}}} \\ \small\text{\color{brown}{\underline{Waals \: \: fórces) \: \: respónsible \: \: for \: \: the \: \: \: búlk}}} \\ \small\text{\color{brown}{\underline{property \: \: of \: liquids \: \: résisting \: \: séparation.}}} \\ \small\text{\color{grey}{\underline{ \: \: \: \: Spécifically, these attràctive fórces éxist}}} \\ \small\text{\color{grey}{\underline{between \: molecules \: of the sàme substance.}}} \\ \small\text{\color{grey}{\underline{For \: instànce, \: rain \: falls in droplets, rather}}} \\ \small\text{\color{grey}{\underline{than \: \: a \: \: fine \: \: mist, \: \: because \: \: water \: \: has}}} \\ \small\text{\color{grey}{\underline{strong \: cohesion, \: which pulls its molecules}}} \\ \small\text{\color{grey}{\underline{tightly \: \: \: \: \: tógether, \: \: \: \: \: \: forming \: \: \: \: \: \: \: droplets.}}} \\ \small\text{\color{green}{\underline{ \: \: \: \: \: \: This force tends to únite molecules of a}}} \\ \small\text{\color{green}{\underline{liquid, gàthering them into relatively large}}} \\ \small\text{\color{green}{\underline{cluśters \: due \: to \: the \: molecules' \: dislike \: for}}} \\ \small\text{\color{green}{\underline{its surroundings. \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }}}$

Answer 2

Answer:

Cohesion, in physics, the intermolecular attractive force acting between two adjacent portions of a substance, particularly of a solid or liquid. It is this force that holds a piece of matter together. Intermolecular forces act also between two dissimilar substances in contact, a phenomenon called adhesion.

Explanation:

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