Question

when carbon dioxide is called to -57°C it directly become a solid without changing to its liquid state is called____________.​

Answer 1

One example of a substance that undergoes sublimation is dry ice. Dry ice is the solid form of carbon dioxide. It often is used to keep materials cold and dry. At room temperature and pressure, carbon dioxide does not exist as a liquid.

Answer 2

Sublimation:

The process, where a solid on heating, directly changes into a gas without changing into liquid, and a gas on cooling, directly changes to solid without changing into liquid is called sublimation.