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What else can I help you with?
As water is cooled its density does what until it reaches about 4 C?
As water is cooled its density increases until it reaches about 4 C and then it decreases.
Is Saline a suspension?
that question does not make sense... do you mean are the salts in a saline SOLUTION in suspension? No... they are in solution. If you tried to seperate the salt from the water you could not unless you bolied off the water/cooled it down
Why is 1 meter length kept in 0 degree Celsius?
All metals expand when heated and contract when cooled. It is important, therefore, that the standard metre is kept at some constant temperature. That constant temperature could be any temperature but the triple point of water is a convenient benchmark.
What would happen to the pressure if you cooled down the container?
The pressure inside the container would decrease.
If a tin is filled with hot water and sealed then covered with cold water What causes the tin to become dented?
The outside air pressure dents the tin. The water or air inside a sealed metal container will contract when cooled from the outside (by conduction through the can). When it was sealed, the pressure on the inside was the same as on the outside. But the contraction reduces the pressure on the inside, causing the external air pressure to squeeze the can, and possibly cave it in. This is widely demonstrated in another experiment using dry ice. A sealed gasoline can of about a gallon (4 liters) is placed on a dry-ice bed and cooled until the outside air pressure crushes the can.
Do metals expand when they are cooled?
No, most substances contract with cooling, only some exotic substances (eg water) expands when cooled.
Why does metal contract?
Metals, like most solids will contract when cooled. When cooled the atoms or molecules slow down, vibrating less often, causing a smaller average separation between them.
Why does a gass expand when heated and contract when cooled?
When a gas is heated up, the particles within the gas start to move faster, going farther apart (expansion). When a gas is cooled, the particles slow down and it starts to condense (contract), and if cooled enough, into a liquid.
How does a bar of steel get shorter after it has cooled down?
The bar will contract (get shorter) as it cools down, and expand (get longer) as it is heated up.
What do most materials do when they are cooled?
Most materials contract and become denser as they are cooled due to the decrease in thermal energy causing the atoms or molecules to move slower and come closer together. However, certain materials such as water expand when cooled to form ice, which is less dense than liquid water.
What will happen if hot water is cooled?
If hot water is cooled, its temperature will decrease until it reaches equilibrium with the surrounding environment. As the water cools, its molecules will slow down, causing the water to contract and become denser. Eventually, if cooled enough, the water may reach its freezing point and turn into ice.
Which of the two metals contract more when cooled?
Generally, all metals contract when cooled. However, the rate at which they contract depends on their coefficient of thermal expansion. In general, materials with higher coefficients of thermal expansion will contract more when cooled.
What objects expands when its cold?
Most substances will contract when the temperature decreases. One well-known exception is water; between 4°C and 0°C it will expand if it is cooled down.
When a substance is cooled down it usually expands true or false?
False. Most substances contract or shrink when they are cooled down because cooling reduces the kinetic energy of the particles in the substance, causing them to move closer together.
Do all solids contract then cooled?
No
Does gases contract when heated?
No, gasses expand when heated and contract when cooled.
Do liquides contract when heated?
Liquids expand when heated and contract when cooled.
