When most solids are heated, they melt into liquids. This behaviour makes sense in terms of entropy, or disorder: a liquid state is usually more disordered than a solid state, and higher temperatures mean that the particles within a material vibrate randomly with more energy. One exception, ho...
A powdered form of adhesive could help stick things to rough or inaccessible surfaces.Most glues are either liquids that dry, or solids that become viscous and sticky when heated. Now Syuji Fujii of Osaka Institute of Technology in Japan and his team have made a powder that becomes a glue ...
Why are there larger waves in the Antarctic Ocean? Explain why saltwater is more dense than fresh water in terms of particles. Why do liquids flow and solids do not? Why should carbonated beverages be kept cold? What makes ice melt faster, salt or sugar? Why does the temperature remain co...
When table salt (NaCl) is placed in water, the water molecules literally pull the salt particles into ions, Na+ and Cl-, which then fit in the spaces between the water molecules. This holds the ions apart. As the water is evaporated out, the ions slowly move back together and, once ...
We are given that equal lengths of different solids expand by the same amount when heated equally. This means: - Let the original length L be the same for both solids (Solid 1 and Solid 2). - Let the change in temperature ΔT be the same for both solids. 3. Applying the Expansion ...
Spontaneous breakage of tempered glass is immediately noticeable because an initial crack exceeding a critical size (depending on its location within the thickness of the glass) causes complete fracture of the plate, typically into very small cube-shaped particles, also known as “dice”. ...
Air pollution is pollution that is mainly caused by the solids well as the liquid particles that are present in the air. Air pollution is very harmful to the human body as it causes cancer. Air pollution also causes aci...
Why is sulphide ore of copper heated in a furnace afer mixing with silica? View Solution A beam of white light is incident on the glass-air interface from glass to air such that green light just suffers total internal reflection. The colors of the light which will come out to air are ...
What happens to convection currents when liquid or gas is no longer heated? Which one of the following best describes sublimation? A)The movement of gaseous particles so that they fill the space that they occupy B)A solid forming a vapour on heating and reforming as a solid on co...
Explain why either greatly decreasing or increasing the percentage of oxygen in the atmosphere is dangerous. How does the size of particles in sediment affect groundwater retention? How does storm water run off affect crops? Explain how atmospheric sulfur trioxide (SO3) ...