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Iodine is held by the weakest bond - Van der Waals - because it is a covalent nonmetal substance.
Iodine also has low vapor pressure. Once Iodine reaches a certain point, there's not enough force holding the molecules together to even make a liquid. Instead, they escape and become a gas.
Iodine sublimes due to its weak intermolecular forces. As the temperature increases, the energy provided allows iodine molecules to overcome these weak intermolecular forces and transition directly from a solid to a gas phase without passing through the liquid phase.
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What is the equation for iodine being heated?
When solid iodine is heated, it sublimes directly to form a purple vapor. The chemical equation for this process is: 2I2(s) -> 2I2(g)
Does solid iodine give blue gas on sublimation?
Yes, solid iodine sublimes directly to a purple vapor, not blue.
Iodine sublimes to iodine vapor is physical or chemical change?
Sublimation of iodine to iodine vapor is a physical change. It is a phase transition in which a substance goes directly from a solid to a gas without changing its chemical composition.
What state of matter is iodine at room temperature?
Iodine is a solid at room temperature. It sublimes directly from a solid to a gas without passing through a liquid phase.
What is the obtained form of iodine?
The obtained form of iodine is a lustrous, purple-black solid that sublimes into a violet gas when heated.
Which halogen sublimes to violet vapours?
iodine is the only halogen in solid form. so it is the halogen which gives violet vapours on sublimation...
What is the equation for iodine being heated?
When solid iodine is heated, it sublimes directly to form a purple vapor. The chemical equation for this process is: 2I2(s) -> 2I2(g)
Which of the element is sublimes on heating?
One example of an element that sublimes on heating is iodine. When solid iodine is heated, it directly changes into a gas without passing through a liquid phase.
How can you separate iodine mixed with zinc oxide?
One way to separate iodine from zinc oxide is through sublimation. Since iodine sublimes at a lower temperature than zinc oxide, you can heat the mixture to a temperature where iodine sublimes, and then collect the iodine vapors while leaving behind the zinc oxide.
What solid sublimes on heating?
Iodine is a solid that sublimes on heating. It changes directly from a solid to a gas without passing through a liquid state.
What ductility of iodine?
Iodine is a brittle solid at room temperature and does not exhibit ductility. It easily sublimes into a gas when heated.
What element sublimes when gently heated?
Iodine is an element that sublimes when gently heated. Sublimation is the process of a substance transitioning directly from a solid to a gas phase without passing through the liquid phase.
What gas is produced when iodine are heated?
When iodine is heated, it sublimes directly from a solid to a purple gas. The gas produced is diatomic iodine molecules (I2).
What is an element that is a shiny black solid and gives off a purple vapor when heated?
Iodine ------------------------------------------- The element you describe sounds like iodine, a good test to make sure that it is iodine is to see if the substance sublimes. This means a solid sample of iodine will turn straight from a solid into a gas with no liquid stage.
Iodine liquid or solid?
Iodine is a solid at room temperature and pressure. It sublimes directly from a solid to a purple vapor without melting.
Does solid iodine give blue gas on sublimation?
Yes, solid iodine sublimes directly to a purple vapor, not blue.
Which halogen goes from the solid phase directly to a gas?
Iodine is the halogen that sublimes directly from a solid to a gas at standard pressure and temperature.
