why do aluminum can collapse when cooled?
968776
Only if the can is closed (air tight).  Cooling the closed can, cools the enclosed gas (air) which contracts, lowering the inside pressure.  Since the outside pressure now is greater, it collapses the thin aluminum can.
504847
It gets colder. So clearly not isothermal (which means it stays the same temperature). It's adiabatic because no energy is released or absorbed.
155392
One method is using bimetallic strips of metals that can stand very high temperature. Bimetallic strips bend when the temperature changes.
232646
Fire is oxidation of a material at a fast rate. The aluminum foil you put in the stove getx a coat of aluminum oxide on it and then goes no further as a gas oven is not hot enough to "burn" aluminum. Aluminum can be burned if one gets the temperature hot enough. This is called the thermite reaction and happens when finely divided aluminum, such as shavings is mixed with iron oxide (rust) and the mixture set afire with a fuse perhaps made from thin strips of magnesium metal. The iron oxide or rust becomes iron metal again and the aluminum becomes aluminum oxide or alumina. The heat is intense enough to melt iron.Such reactions are used in industry to perform welding. It is all quite dangerous and a person not familiar with the laws of chemistry may become blinded by the light of the reactions involved or harmed by server burns. Do not try this at home.
169888
Yes, it does.  This is evident by water freezing in enclosed containers (such as pipes) and deforming them, sometimes even rupturing them.  \n\nWhen water molecules become cold enough to freeze, or change into a solid form, their crystal structure is less dense than when in liquid form.  This is due to the inherent shape of the water molecule and how the molecules line up in solid form.\n\nIf you live in a colder climate, it's a standard procedure to drain any remaining water out of things kept outside over the winter, such as boats, swimming pools, outdoor water pipes, etc.  Otherwise you can almost expect them to be ruined by the time you want to use them again.
868653
what do you mean by, "the answer of aluminum can"   ???????
1134140
Depends on the thermoconductive properties of a certain material. Copper for example will heat up or cool down very fast.
236269
Because the atoms in heated water are farther apart.  It actually makes the water less dense.  It then becomes easier to freeze less dense liquid.
778997
It can collapse if the walls get wet then slump down or if the supports fail.  I think explosions occur when there is gas found.
95862
it gets hot, which in turn causes more resistance, and it gets even hotter, which causes more resistance.  if there are enough amps, the metal will melt.
79185
When you compress the spring, you distort the lattices of the crystals that make it up.  The potential energy is stored in the chemical bonds between atoms in the lattices.\n\nIf these bonds were broken, the atoms would still have the same energies, but would no longer be tied into a crystal.  Their potential energy would become the kinetic energy of motion.  The kinetic energy of atoms and molecules is measured by their temperature.  \n\nFormerly metallic solid spring would become a hot gas.  In other words, the potential energy would be converted to kinetic energy (high temperature) and you would see an explosion.
761197
If it's a property of a metal, it's referring to the metal's ductility.  Metals like silver and copper have a high ductility - meaning they can be drawn into wires by a mandrel quite easily.  Titanium has a very low ductility - meaning the metal will tend to break if drawn.
330764
Either drop the temperature (remove the enthalpic - heat - energy) or increase the pressure (the less space it has to move freely the closer to solid it becomes) or both
165977
Radiation energy keeps the atoms appart othe wise every atom would kiss each other. If you remoave this radation energy by cooling the atoms would come closer and closer till they form a tight  bond.Athat point the gas has changed its personality=it is said it changed phase and it beomes a solid. but it can only remain that way depending  at what temperature a pressure its existing.\nAs soon as you inject heat the gas return into its natural steady state.Phases of substance are convertible.\nhowver, we live in a world of equilibrium which makes our existence possible.\nif this mechanisn of material phase equilibrium protection was not in place we would all turn to solid matter.
36498
it has to do with moisture and heat.  If moisture gets into the grain of the wood, then it will swell the wood.  now when the wood gets cool again, it shrinks and then when it's warmer it expands, so it eventually cracks, you need to have a good seal on the wood so moisture won't get in there.\n\nan extra tidbit about hot and cold cracking-  did you know that on mountains where water runs in the summer and freezes in winter, the moisture in the rocks can make them split because the ice expands and spreads the molecules in the rocks.
973045
Concrete, as it cures, forms a complex and insoluble "crystalline" structure.  Crystalline materials such as this have atoms that are more or less "locked" in place by the kinds of chemical bonds that formed during the curing process.  Since the atoms are more or less fixed in space relative to one another, they can't slip and slide to dissipate stresses.  So, when a large enough force is applied, the strong chemical bonds finally break and a "brittle fracture" occurs.  One observes concrete shatter, creating splinters and dust, and the material is described as brittle.
405523
If the spheres are of same volume, their apparent loss of mass will be the same.\n\nIf the spheres are of same mass, Aluminium sphere's apparent loss of mass will be more.