3. If liquid mercury has a contact angle, 9 of 140 with glass, which statement is correct? Liquid mercury will not wet the surface. b) Liquid mercury will wet the surface. c) Liquid mercury will wet the surface at high temperature only. d) Liquid mercury will wet the surface at very low temperature. 4. One of the following is not an assumption of the Langmuir isotherm: a) Surface coverage can have the values of 8 20. b) Adsorbed species do not interact. c) Adsorption at a particular site is independent of the adsorption at neighboring sites. d) All sites are equivalent.
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
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