How does dry ice ( directly) changes into gas ?
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Dry ice is the name for carbon dioxide in its solid state. At room temperature, it will go from a solid to a gas directly. Once it gets to this temperature, carbon dioxide bypasses the liquid state and goes directly into a gas in a process called sublimation.
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When energy is transferred to dry ice, the solid carbon dioxide does not melt to liquid carbon dioxide. Instead, the solid changes directly to a gas. This process is called sublimation. Sublimation occurs when molecules of a solid move fast enough to overcome the attractions from other molecules and become a gas.
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