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To melt solid I2, one must overcome the covalent bonds holding the molecules together.
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What happens when a solid melts to become a liquid?
When a solid melts, atoms are released from their crystal lattice and can move freely within the volume of the liquid. The thermal energy from heating the solid has been converted to kinetic energy.
When a solid melts does it absorb or give off heat?
A solid will absorb heat. Looking at an ice pack, as the ice inside melts the heat from surrounding areas is removed to melt the ice. The reason ice feels cold to the skin is that it is absorbing heat from your skin -- which is what feels cold.The heat is absorbed and goes to breaking the intermolecular attractive forces that hold the solid together. In a liquid, the intermolecular forces are greatly reduced, which is why it is fluid rather than solid. To boil a liquid, and turn it to gas, additional heat must be absorbed.
What attractive force must be overcome to melt ice?
The strong Hydrogen Bond needs to be overcome to melt ice. A hydrogen bond is basically a dipole-dipole bond that's really strong (slight negative attracted to slight positive). Remember Hydrogen bonds are H-O, H-N, H-F, so specifically, H-Bonding forces need to be overcome.
Why does it take time for solids to melt?
Certain solids transform or melt into liquids faster than others because of their chemical composition and the strength of their intermolecular bonds. This is measured by the "specific heat." The amount of energy required to break or form an intermolecular bond is the specific heat of a substance. The specific heat determines a substances melting/freezing point (i.e. the point at which a solid becomes a liquid and vice versa). The amount of energy, absorbed in the form of heat, in the process of melting a solid into a liquid, is what determines how fast a substance melts.
What is required on order to melt a network solid?
Breaking covalent bonds throughout the solid would be required to melt a network solid.
What intermolecular forces must be overcome in order to change the crisco from a solid to a liquid?
you melt it...
Why does candle wax melt at 58 degrees?
The intermolecular forces holding the wax together break causing it to melt.
What temperature will a solid melt?
The temperature at which intermolecular forces push the molecules apart
What type of forces must be overcome to melt or vaporize a substance?
There are different types of forces that must be overcome to either vaporize or melt a given substance. These forces includes the hydrogen bond, the London dispersion forces, and the dipole-dipole forces.
What must be added to a solid to cause it to melt?
Heat must be added to a solid to cause it to melt. As the temperature increases, the solid gains enough energy to overcome the forces holding its particles together, causing them to move more freely and transition into a liquid state.
What are the prominent intermolecular forces of Aluminum Chloride?
Alumininium chloride is only molecular in the melt and vapour where a chlorine bridged dimer is present along with a monomer ate very high temperature. The intermolecular forces are londn dispersion forces. In the solid it adopts an unusual layer structure containing 6 coordinate aluminium- there are no molecules present .
When salt is placed on ice the ice melts. explain why?
salt is placed on ice the ice meits becuse ice from warer where by it from liguid to solid nuder process of sublimation,and know ice is form of solid and partical only vibrates.on other hand the particles move faster and ice of water need to evaporte befor that the ice shouid be melt
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.
Melting point of solid?
The temperature at which the kinetic energy overcomes the intermolecular forcesThe temperature at which the kinetic energy overcomes the intermolecular forces
How do you melt the element Mercury?
The melting point of mercury is -38.8oC. In other words, if you have solid mercury, you can melt it by heating it up to this temperature. At room temperature, mercury is already a liquid-based solid, meaning this question is a bit like asking how you melt water-like ice.
Why do the melting and boiling points of a particular subsatnce vary?
It is because the intermolecular forces(the attractive forces between the molecules of a substance) differ from one substance to another. The chemical with the stronger intermolecular forces will have higher melting and boiling points, and vice versa. This is because more energy is required to separate the molecules to melt or boil the substance, if the forces are strong. The factors that determine the size of these forces are :the type of bonding in the molcules, andthe mass of the molecules.
Why do ionic compounds tend to have higher boiling points than molecular compounds have?
Ionic. To boil it you have to first melt the lattice- and then put enough thermal energy into the melt to cause ions to "break" free.In a molecular solid/liquid (discrete molecules not giant!)- you are only breaking intermolecular forces to cause boiling and these are weaker than electrostatic attraction between ions..
