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When a substance goes directly from a gaseous state to solid state as dry ice does?
When a substance changes directly from solid state to gaseous state without changing to the liquid state, it undergoes sublimation. Examples of substances which sublime include dry ice and ammonium chloride.
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Another contributor continued:
The process is considered to be unusual among various substances, but the truth is that
it's rare only under the conditions in which human beings live, i.e., normal air pressure.
There is a threshold of pressure for every substance above which the substance has no
liquid phase, and passes directly between the solid and gaseous phases.
Example:
Above a pressure of about 214 atmospheres (3,120 pounds per square inch), water doesn't
exist. At that pressure, ice thaws directly to steam at 373° C (703° F), just as dry ice does
at room temperature and pressure..
What else can I help you with?
What is the change over from gas directly to solid called?
The change from gas directly to solid is called deposition. It occurs when a substance transitions from the gaseous state to the solid state without passing through the liquid state.
Which substance changes from gaseous state to solid?
Carbon dioxide changes from a gaseous state to a solid state through the process of deposition. This occurs when carbon dioxide gas directly turns into solid carbon dioxide ice without transitioning into a liquid state first.
What is the gaseous state of a substance that is normally a liquid or solid?
Vapour
When a substance passes directly from solid to gaseous state on heating it is said to be?
When a substance passes directly from a solid to a gaseous state upon heating, it is said to undergo sublimation. This process occurs without the substance first becoming liquid, and is commonly observed in materials like dry ice (solid carbon dioxide) and iodine. Sublimation typically occurs under specific temperature and pressure conditions where the solid's vapor pressure exceeds atmospheric pressure.
When something goes from a solid directly to a gas what is it called?
The process of a substance changing from a solid directly to a gas is called sublimation. This occurs when the substance's vapor pressure exceeds its atmospheric pressure at a certain temperature, allowing it to transition from a solid state to a gaseous state without passing through the liquid phase.
What is the gaseous state of a substance that is normally a liquid or solid called?
Vapour
Which substance in the gaseous state should be calleda vapour?
A substance in the gaseous state that is typically a liquid or solid at room temperature can be referred to as a vapor. Examples include water vapor or steam, which is the gaseous state of water.
What is a substance that pass from solid state to a liquid state without the gaseous state?
A substance that transforms directly from a solid to a liquid state without passing through the gaseous state is said to undergo sublimation. One common example is dry ice (solid carbon dioxide), which sublimes into carbon dioxide gas at room temperature and pressure.
What type of change is it when a solid turns into a gas?
Sublimation - the process by which a substance goes directly from the solid to the gaseous state without passing through the liquid state.
Why is vapor the same to ice?
No. Vapor is a substance in its gaseous state. Ice is water in its solid state.
Solid to liquid to gas?
The process of transforming a substance from a solid state to a liquid state is celled melting. The process of transforming a substance from a liquid state into a gaseous state is called vaporization.
When a substance changes from one state to another do the chemical properties change?
From solid to liquid, from liquid to gaseous, from gaseous to liquid, from liquid to solid, and in sublimation from solid to gaseous or the reverse, chemical properties do not change.
