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Why is A crystal of iodine on heating in a closed flask turn into vapour and fills the complete flask?
Iodine sublimes directly from a solid to a gas when heated, without passing through a liquid phase. In a closed flask, the vaporized iodine molecules are unable to escape, so they accumulate and fill the entire volume of the flask. This process is known as sublimation.
How can iodine crystal be remove from the mixture?
Iodine crystals can be removed from a mixture by sublimation, where the crystals are heated to turn directly into vapour without melting. The vapour can then be condensed back into solid iodine crystals. This technique allows for the separation of iodine from other components in the mixture.
What dark crystals turn into purple vapour when they are heated?
Amethyst crystals are known to turn into purple vapour when they are heated. This phenomena is due to the presence of iron impurities in the crystal structure of amethyst that react to heat by creating the purple coloring.
How would you separate iodine crystals from mixture of iodine and sand?
One method to separate iodine crystals from a mixture of iodine and sand is by using sublimation. Heat the mixture, and the iodine will sublimate (turn into gas) leaving the sand behind. The iodine gas can then be collected and cooled to form iodine crystals.
These dark crystals turn into a purple vapour when heated?
The dark crystals are likely to be a compound that sublimes upon heating, meaning it changes from a solid directly into a gas without passing through a liquid state. The purple vapor could be due to light scattering or absorption by the gas molecules, leading to the color change.
What is the purple substance of the iodine after heating?
It is vapour formed during the process of sublimation.
The element which gives you violet vapour on heating it?
Iodine is the element that gives off violet vapor when heated.
Why is A crystal of iodine on heating in a closed flask turn into vapour and fills the complete flask?
Iodine sublimes directly from a solid to a gas when heated, without passing through a liquid phase. In a closed flask, the vaporized iodine molecules are unable to escape, so they accumulate and fill the entire volume of the flask. This process is known as sublimation.
How can iodine crystal be remove from the mixture?
Iodine crystals can be removed from a mixture by sublimation, where the crystals are heated to turn directly into vapour without melting. The vapour can then be condensed back into solid iodine crystals. This technique allows for the separation of iodine from other components in the mixture.
What happens when you burn an iodine crystal?
when iodine crysatals are heated, they turn from a solid into a gas (vapour). They start a black colour and as they gradually turn into a gas, they turn to a purple colour. At the end, there are no crystals left.
Is vapour invisible?
Whi many are, many are not (iodine vapour is quite easily seen, for example, where water vapour is not).
What dark crystals turn into purple vapour when they are heated?
Amethyst crystals are known to turn into purple vapour when they are heated. This phenomena is due to the presence of iron impurities in the crystal structure of amethyst that react to heat by creating the purple coloring.
How will you separate iodine and salt mixture?
heat the mixture iodine will sublime collect the iodine vapour separately and cool
How would you separate iodine crystals from mixture of iodine and sand?
One method to separate iodine crystals from a mixture of iodine and sand is by using sublimation. Heat the mixture, and the iodine will sublimate (turn into gas) leaving the sand behind. The iodine gas can then be collected and cooled to form iodine crystals.
These dark crystals turn into a purple vapour when heated?
The dark crystals are likely to be a compound that sublimes upon heating, meaning it changes from a solid directly into a gas without passing through a liquid state. The purple vapor could be due to light scattering or absorption by the gas molecules, leading to the color change.
Explain why the iodine test gave such results upon prolonged heating?
explain why the iodine test gave such results upon prolonged heating
Can iodine and sodium chloride be separated by evaporation?
Yes, iodine can be released from the mixture by heating.
