Why does a solid change to liquid when heat is added? Why does water expand when frozen? Why can gases and liquids both transmit heat by convection? Why do liquids flow and solids do not? Why do gas molecules enter liquids? Do they enter solids?
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18 Why does convection take place in a liquid when it is heated? A Liquids expand when they are heated. B Liquids start to bubble when they get close to boiling point. C Molecules in the liquid expand when they are heated. D Molecules near to the surface of the liquid escape into the...
Why does a solid change to liquid when heat is added? Why is temperature an intensive property? Why does ice melt faster in water? Why do ionic compounds dissolve readily in water? Why is the volume of an ice cube is greater compared to when it melts to form liquid water?
Why does pouring hot water over a tight jar lid will loosen it? Hot water makes the metal of the jar expand; this makes the cover loose. Most objects expand when heated because they are made of molecules that are in constant motion. Heat makes molecules(分子)move faster. The hotter the...
They are constructed of a solid-state device that acts like a variable resistor. As the temperature changes, so does its resistance. These devices have excellent sensitivity and accuracy. They come in a wide range of resistance values. They have excellent long-term drift characteristics and ...
Copper does not react with water or steam because it is very low on the reactivity scale.It actually does react with water and steam but it takes a... Learn more about this topic: Reactivity | Definition, Elements & Examples from
“Intech’s long-term relationships are built on solid foundations of fast and courteous customer service. We look at our leadership role as a responsibility to help grow our coating customers’ capabilities and services and lift the industry as a whole in the process.” Teflon™ is a househo...
How Does Circuit Bending Work? Circuit bending involves taking an electronic device apart and deliberately creating short circuits, or “bends,” by connecting different components within the device. These connections often require soldering wires, switches, or potentiometers, but can also be as ...
Iron loses its magnetism when it’s heated to a few hundred degrees, yet Earth’s core – which produces a strong enough magnetic field to hold the planet together – is made of iron that’s so hot it is in a liquid state! Why then, does the molten iron in Earth’s core produce ...