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The molecules of any substance are attracted together. Heat causes the molecules of a solid to separate from each other, making the solid become a liquid.
Wiki User
∙ 9y ago
Wiki User
∙ 11y agoIn motion
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Why is AlBr3 soluble in water?
For any soluble substance, the ions of that substance have a stronger attraction for water molecules than they do for each other.
Substance changes to form a new substance with?
a chemical reaction causes breakage and bonding of the atoms and molecules in any substance that consists of matter.
Why gases highly compressible than solid?
In a gas, the molecules are free to move around and are relatively far apart from each other, so you can compress the gas and move the molecules closer to one another. In a solid, the molecules are already touching and so can't be moved any closer to each other.
How many carbon tetrachloride molecules are in 3.54 mol carbon tetrachloride CCl4?
3.54 (mol) * 6.02*1023 (molecules/mol) = 2.13*1024molecules (of any substance)
Whats happening to the atoms and molecules to cause rock material melt?
A rock, or any solid substance melts, it becomes less dense due to the heat exciting the molecules. They start to move and are bumping into each other at rapid rates, causing the fluid nature of the melted substance.
Why is AlBr3 soluble in water?
For any soluble substance, the ions of that substance have a stronger attraction for water molecules than they do for each other.
Why does an egg expand when heated?
Any substance expands when heated. The molecules become more active and push against each other with greater force, thus increasing the distance between them.
What happens to the molecules of a substance when it is charring?
Normally, when substance burns, the molecules undergo a rapid oxidation, which excites the molecules greatly. The heat that is input into the substance, and the oxidation process, causes the molecules to move around very quickly. As the molecules return to their lower energy resting state, they shed the excess energy in the form of heat. When the goal is to char, instead of burn, the molecules are exposed to the same heat as for burning, but they are denied oxygen. Since the materials do not have access to oxygen, they do not burn (rapidly oxidize). All of the molecules still get excited, and move and bump into each other, but the fuel is not consumed, as that requires oxygen. Once the molecules of the substance get hot enough, any molecules of water or other liquids change state to a gas and are driven out of the substance being heated, because of the expansion of the gas. Charring is most commonly used to dry wood completely, without using up the wood's potential energy as fuel.
How does intermolecular forces of a substance determine the phase the substance is in?
The strength of the intermolecular forces will determine what phase the substance is in at any given temperature and pressure. Consider the halogens for example, fluorine and chlorine are gases, while bromine is a liquid and iodine is a solid at room temperature. When considering the intermolecular forces present, each of these substances only has London forces, which increase in magnitude with increasing size of the molecules, and size increases as you go down a group in the periodic table. So, fluorine has the smallest intermolecular forces, and iodine has the largest. This explains why these different substances exist in different phases when at room temperature and pressure. The molecules in fluorine, for example, are only slightly attracted to each other, and therefore the substance exists as a gas. The stronger intermolecular forces in bromine, however, hold the molecules close to each other, but not quite strongly enough to prevent the molecules from sliding past each other; this makes bromine a liquid. Finally, in iodine, the intermolecular forces are actually strong enough that the molecules are held in fixed positions relative to each other, thus making iodine a solid.
Substance changes to form a new substance with?
a chemical reaction causes breakage and bonding of the atoms and molecules in any substance that consists of matter.
How many molecules of h20 are in 2.43 mol of h20?
A mole of any substance is 6.02214179×1023 (just use 6.022) molecules of it. So 1.23 moles of any substance (including water) is 1.23 x 6.022 x 1023 molecules, whatever that is...
What is the meaning of polymer?
Any one of two or more substances related to each other by polymerism; specifically, a substance produced from another substance by chemical polymerization.
How many molecules in 2.1 mole?
2,1 mole of any substance contain 12,646 496 709(27).1023 molecules.
What occur when the number of molecules of a substance is equal in two areas?
Any diffusion occur.
1 mole of Pb atom is6.023x10?
1 mole of any substance has 6.022 x 1023 atoms or molecules of that substance
Why gases highly compressible than solid?
In a gas, the molecules are free to move around and are relatively far apart from each other, so you can compress the gas and move the molecules closer to one another. In a solid, the molecules are already touching and so can't be moved any closer to each other.
How fast do molecules move in hot water?
Very fast. It moves faster than cold water, definitely. As the temperature of almost any substance increases, so does its kinetic energy of each molecule.
