0
The answer to this question depends somewhat upon the property of the material you are examining. For example whilst glass ordinarily expands upon heating, some glasses can be designed to have only a minute expansion. Which is good for glass stove tops, oven doors, and telescope mirrors.
And similarly with electrical resistance, materials may be designed with a negative coefficient of electrical resistance with temperature.
The common generalization is that on cooling from the vapour phase, materials will first condense to a liquid, and with further cooling will freeze as a solid. Apart from Helium, which has no solid state.
Having said all that, the common behaviour is for materials to expand on heating and shrink on cooling. Except where change of state is encountered, and some materials such as water ice, Silicon, Ga, Sb, Ge, and Bi, all have anomalous expansion on freezing - but only over a limited range.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Which metals react slowly with cold water but vigorously with steam?
All metals, if they do react with water at all, react faster in steam than in water. However, the metals that react SLOWLY with cold water are the metals from Group-IIA(Magnesium, Calcium, etc).
Does gold not react with oxygen in the air because it conducts heat?
Gold does not react with oxygen because of its atomic structure which makes it very stable. As it is entirely stable, there is no need for it to react with oxygen to gain stability. Conduction of heat has nothing at all to do with it. Iron is an excellent conductor of heat but reacts readily with oxygen.
What name is given to all chemical reactions which releases heat energy?
Exothermic reactions produce heat. Endothermic reactions take in heat from the surrounding area and get cold.
Do all metals react with hydrocholric acid?
no all metals do not react with hydrochloric acids
Why is it necessary to remove all water from bromobutane before distilling it?
Removing all of the water is necessary because otherwise, the high heat during distillation will cause the water and bromobutane to react and form butanol.
Which metals react slowly with cold water but vigorously with steam?
All metals, if they do react with water at all, react faster in steam than in water. However, the metals that react SLOWLY with cold water are the metals from Group-IIA(Magnesium, Calcium, etc).
Which is true heat can travel well through all materials or heat can travel well through some materials?
Some, but not all. Some materials are insulators- heat does not travel well through them.
What will happen if you don't insulate?
You will be cold in the winter and hot in the summer. If you heat your house, all the heat will escape. If you use an air conditioner, all the cold air will escape.
Does wood conduct heat?
All materials conduct heat so: Yes The real question is how quickly.
What example of materials allow heat to travel?
Copper, silver and aluminum are all good conductors of heat.
Does hair grow faster in heat?
No cold. This is because when cold, the body and all things in it regenerate faster to produce or accumulate heat.-A.S.
Does gold not react with oxygen in the air because it conducts heat?
Gold does not react with oxygen because of its atomic structure which makes it very stable. As it is entirely stable, there is no need for it to react with oxygen to gain stability. Conduction of heat has nothing at all to do with it. Iron is an excellent conductor of heat but reacts readily with oxygen.
What direction does heat always travel?
heat transfers to the coldest thing in the area. there for, there is no such thing as hot or cold because when something is cold all you really feel in the loss of heat from your hand to the cold object. same goes for hot. all you really feel is the large amounts of heat that hot object is giving you.
Can parsley grow in cold weahter?
no bc it doesnt have the heat and all living things need heat
Why was heat a problem for the pilgrims?
They lived in a cold climate where it snowed and all they had to heat food or a house with was the fireplace.
Why is it incorrect to say that insulation keeps out cold?
Because in science, cold doesn't exist. You can't make cold, you can only remove heat. But in human language we've made words to describe the absences too. Dark is the absence of light. Cold is the absence of heat. Vacuum is the absence of all material. So insulation can't keep the cold out, since the cold doesn't exist. What you can do though is keep the heat in. Heat is a real thing. You can make heat.
Why does heating a enzyme make it react quicker?
All chemical reactions run faster when heat is added.
